Hello everybody,

I have usual problem with different page look in IE6 than in other browsers. After a lot of googling and many trials, I'm clueless. A big part of layout is moved down in IE6.

Any help would be appriciate.

This is a link to page: http://www.djordjeweb.nl/compshop/index.php

And here is code:

style.css

Code:
* {
	margin: 0px;
	padding: 0px;
}

body {
	height: 100%;
	background-color: #ffffff;
	color: #85859c;
	font-family: tahoma, arial, sans-serif;
	font-size: 10px;
	text-align: center;
}

a {
	color: #85859c;
	text-decoration: underline;
}

a:hover {
	color: #69699c;
}

span {
	display: none;
}

img {
	border: none;
}

p {
	margin: 10px 0px 5px;
	text-align: justify;
	line-height: 14px;
}



.clearthis {
	margin : 0px;
	height : 1px;
	clear : both;
	float : none;
	font-size : 1px;
	line-height : 0px;
	overflow : hidden;
}

#container {
	margin: 0px auto;
	width: 780px;
  /*width: 768px;*/
	border-color: #9e9ec3;
	border-width: 0px 1px 1px;
	border-style: solid;
}

input {
	padding-left: 2px;
	background-color: #fff;
	color: #85859c;
	font-family: tahoma, arial, sans-serif;
	font-size: 11px;
}

table { border-collapse:collapse; }


/* Page Header */

#page_header {
	width: 780px;
	/*width: 768px;*/
	height: 80px;
	color: #fff;
	background: #9898CF;
	border-bottom: 1px #fff solid;
	overflow: hidden;
}

#page_header a {
	color: #fff;
	text-decoration: none;
}

#page_header a:hover {
	color: #e1e1e1;
}

#page_heading {
	width: 190px;
	height: 75px;
	float: left;
}

#page_heading h1 {
  width: 190px;
	height: 100px;
	float: left;
	font-size: 28px; 
	color: #FFCCFF;
}

#page_headerlogin {
	padding-right: 30px;
	padding-top: 10px;
	float: right;
	width: 300px;
	text-align: right;
	word-spacing: -1px;
	overflow : hidden;
}

#page_headerlogin h4 {
  float: right;
  font-weight: normal;
  font-size:12px;
}

#page_headerlogin h3 {
  float: right;
	font-weight: bold;
	font-size: 12px;
}

#page_headerlogin a.logout {
	color: #FF99FF;
}

#page_headerlogin a.cart {
	color: #990099;
	font-weight: bold;
	text-decoration: underline;
}


/* Main Navigation Menu */

#page_menu {
	margin-bottom: 1px;
	width: 780px;
/*	width: 768px;*/
	height: 21px;
}

#page_menu ul {
	width: 780px;
	/*width: 768px;*/
	height: 21px;
	list-style-type: none;
	overflow: hidden;
}

#page_menu li {
	margin-right: 1px;
	width: 155px;
	height: 21px;
	float: left;
	background: url('images/menu_background.gif') repeat-x 0px 0px;
	overflow: hidden;
	text-align: center;
	font-size: 11px;
	font-weight: bold;
}

#page_menu li.current{
  color: #CCCCFF;
  padding-top: 3px;
}

#page_menu li.logged{
  color: #fff;
  padding-top: 3px;
}

#page_menu li.last {
	margin-right: 0px;
	width: 156px;
}

#page_menu a {
	padding-top: 3px;
	display: block;
	color: #fff;
	text-decoration: none;
}

#page_menu a:hover {
	color: #e1e1e1;
}


/* Page Banner */

.banner {
  width:780px;
  /*width: 768px;*/
  height:100px;
  background-color:#e1e1e1;
} 

/* Left Sidebar */

#left_sidebar {
	width: 12px;
	float: left;
	text-align: left;
	color: #8989b6;
}

#left_sidebar a {
	color: #8989b6;
}

#left_sidebar a:hover {
	color: #75759c;
}


/* Left Sidebar : Categories */

#categories {
	margin-bottom: 0px;
	padding: 0px 1px 1px 0px;

	border-width: 0px 0px 0px 0px;
	border-style: solid;
	text-align: center;
	float: left;
	background-image:url(images/images/menu_02.jpg);
}

#categories_header {
	margin-bottom: 0px;
	width: 150px;
	height: 29px;
	overflow: hidden;
	background-image:url(images/images/menu_01.jpg);
	background-repeat:no-repeat;
}

#categories_footer {
	margin-bottom: 0px;
	width: 150px;
	height: 29px;
	overflow: hidden;
	background-image:url(images/images/menu_03.jpg);
	background-repeat:no-repeat;
}

#categories_header h2 {
	margin-top: 3px;
	margin-left: 5px;
	color: #FF99FF;
	font-size: 12px;
	font-weight: bold;
}

#categories ul {
	margin: 0px auto;
	width: 120px;
	list-style-type: none;
}

#categories li {
	width: 120px;
	height: 21px;
	list-style-type: none;
	text-align: left;
	border-bottom: #b6b6d2 0px solid;
	float: left;
}

#categories li.current{
  width: 114px;
	height: 18px;
  padding-top: 4px;
	padding-left: 6px;
	font-weight: bold;
  color: #FF0099;
}

#categories li.last {
	border: none;
}

#categories li.currentlast {
  width: 114px;
	height: 16px;
  padding-top: 4px;
	padding-left: 7px;
	font-weight: bold;
  color: #FF0099;
	border: none;
}

#categories li a {
	margin-top: 4px;
	margin-left: 6px;
	display: block;
	color: #7575a9;
	text-decoration: none;
	font-weight: bold;
}

#categories li a:hover {
	color: #56567c;
}


/* Main Content Area */

#main_content {
	margin-left: 140px;
	width: 500px;
	text-align: center;
	float: left;
	display: inline;
}

#main_content .h_divider {
	margin-bottom: 2px;
	height: 1px;
	background-color: #c2c2cd;
	overflow: hidden;
}

/* Products */

.product {
	width: 644px;
	color: #660066;
	padding-left:50px;
}

#product h1 {
	padding: 20px 0px 0px 15px;
	margin-bottom: 0px;
	width: 500px;
	font-family: tahoma;
	color: #FF0099;
	font-size: 20px;
	font-weight: bold;
	text-align: left;
	float: left;
}

.red{
  margin-top: 0px;
  margin-bottom: 0px;
  width: 530px;
  height: 40px;
  font-family: tahoma;
  font-weight: none;
	color: #660066; 
	text-align: left;
	vertical-align: middle;
	float: left;
}

.red p{
  padding-left: 15px;
  font-size: 10pt;
  font-weight: none;
}

.red p.zaglavljelevo{
  font-size: 10pt;
  font-weight: none;
  color: #000000;
}    

.red p.zaglavljedesno{
  font-size: 10pt;
  font-weight: none;
  color: #000000;
  text-align: right;
}  

.red p.zaglavljedesnocena{
  width: 70px;
  font-size: 10pt;
  font-weight: none;
  color: #000000;
  text-align: right;
}  

.red img{
  width: 40px;
  height: 40px;
  padding-left: 10px;
  padding-top:10px;
  float: left;
}

.red p.naziv{
  width: 400px; 
  font-size: 8pt;
}

.red p.cena{
  width: 70px;
  float: right;
  text-align: right;
}

.red p a{
  margin-top: -5px;
  text-align: right;
  float: right;
  color: #ff0099;
  font-size: 13px;
  text-decoration: underline;
}    

/* Detalji proiozvoda */

.detail{
  text-align:left;
}

#detail img{
  float: left;
  padding-top: 0px;
  padding-left: 30px;
  width: 100px;
  height: 100px;
}

.povratak{
  text-align: right;
  padding-top:20px;
  padding-right: 0px;
  width: 150px;
  height: 20px;
  font-size: 13px;
  font-weight: bold;
  text-decoration: underline;
  float: right;
}

#detail a{
  color: #FF0099;
}

#detail a:hover{
  color: #778899;
}


#detail p{
  padding-top: 10px;
  padding-left: 30px;
  text-align: left;
  width: 500px;
  color: #660066;
  font-size: 12px;
  float: left;
}

#detail p.kolicina{
  color: #FF0099;
}  

.formazakorpu{
  width: 100px;
}

#formazakorpu form{
  border-top: 50px;
}

#formazakorpu form.p{
  padding-left: 30px;
  padding-top: 10px;
  width: 70px;
  font-weight: bold;
  color: #FF99FF;
}

#formazakorpu input{
  width: 70px;
	border-style: solid;
	border-color: #9e9ec3;
	border-width: thin;
	color: #FF0099;
}

#formazakorpu input.button {
	background-color: transparent;
	float: left;
	border: none;
	width: 115px;
	height: 37px;
}


/* Login Description */

.login {
	width: 644px;
	float: left;
	margin-bottom: 2px;
	margin-top: 5px;
}

#login {
	width:644px;
}

#login h1 {
	margin-top: 10px;
	float: left;
	padding: 10px 0px 0px 20px;
	width: 644px;
	text-align: justify;
	font-family: tahoma;
	color: #FF0099;
	font-size: 20px;
	font-weight: bold;
}

#login h1.poseban {
	font-size: 12px;
}

#login_image {
  padding-right: 35px;
  margin-top: -24px;
	width: 245px;
	float: right;
	overflow: hidden;
	text-align: right;
}

#login form {
	padding-left: 20px;
	padding-top: 30px;
	float: left;
	font-family: tahoma;
	font-size: 11px;
	color: #660066;
	font-weight: bold;
}

#login form.p {
  padding-left: 20px;
	padding-top: 20px;
	text-align: left;
	float: left;
}

#login input {
	margin-top: 1px;
	width: 220px;
	height: 14px;
	float: left;
	border-style: solid;
	border-color: #666699;
	border-width: thin;
	color: #FF0099;
}

#login input.button {
	padding-top: 30px;
	padding-left: 20px;
	margin-top: 0px;
	width: 79px;
	height: 26px;
	float: left;
	border: none;
}

#log_linkovi{
  padding-left: 20px;
	padding-top: 40px;
	text-align: left;
	float: left;
}

#log_linkovi a{
	color: #3300FF;
}

/* Registration */

.registration {
	width: 644px;
	float: left;
	margin-bottom: 2px;
	margin-top: 5px;
}

#registration {
	width:644px;
}

#registration h1 {
	margin-top: 15px;
	float: left;
	padding: 5px 0px 0px 20px;
	width: 574px;
	text-align: justify;
	font-family: tahoma;
	color: #FF0099;
	font-size: 20px;
	font-weight: bold;
}

#registration h1.poseban {
	font-size: 12px;
}

#registration_image {
  margin-top: -60px;
  padding-right: 35px;
  width: 127px;
	float: right;
	overflow: hidden;
	text-align: right;
}

#registration_image_nalog {
  margin-top: -50px; 
  padding-right: 20px;
  width: 245px;
	float: right;
	overflow: hidden;
	text-align: right;
}

#registration form {
	padding-left: 20px;
	padding-top: 5px;
	float: left;
	font-family: tahoma;
	font-size: 11px;
	color: #660066;
	font-weight: bold;
}

#registration form.p {
  padding-left: 20px;
	padding-top: 10px;
	text-align: left;
	float: left;
}

#registration p.check {
	color: #FF0099;
}

#registration input {
	margin-top: 1px;
	width: 220px;
	height: 14px;
	float: left;
	border-style: solid;
	border-color: #666699;
	border-width: thin;
	color: #FF0099;
}

#registration input.button {
	padding-top: 10px;
	padding-bottom: 20px;
	padding-left: 65px;
	margin-top: 0px;
	width: 79px;
	height: 26px;
	background-color: transparent;
	float: left;
	border: none;
}


/* New Item Description */

#new_item {
	margin: 0px auto 2px;
	padding: 10px 10px;
	width: 600px;
	text-align: justify;
	font-family: tahoma;
}

#new_item_header {
	margin-top: 10px;
	float: left;
	width: 348px;
}

#new_item_header h1 {
	color: #FF0099;
	font-size: 20px;
	font-weight: bold;
}

#new_item_headercontact h1 {
  padding-left: 5px;
	color: #FF0099;
	font-size: 20px;
	font-weight: bold;
	padding-top: 10px;
}

#new_item_header h2 {
	color: #FF0099;
	font-size: 16px;
	font-weight: bold;
}

#new_item_image {
  margin-top: 10px;
	width: 245px;
	float: right;
	overflow: hidden;
	text-align: right;
}

#new_item_image_kontakt {
  margin-top: -24px;
	width: 245px;
	float: right;
	overflow: hidden;
	text-align: right;
}

#new_item_text {
	float: left;
	clear: left;
	width: 348px;
	font-size: 13px;
	color: #660066;
}

#new_item_contact {
  float: left;
	clear: left;
	width: 348px;
	font-size: 13px;
	color: #660066;
  padding-left: 5px;
}

#new_item_contact p a{
	color: #660066;
}

#new_item_link {
	float: left;
	clear: left;
	width: 348px;
	font-weight: bold;
	text-align: right;
}

#new_item_link a {
	text-decoration: none;
}

/* Start Cart */

#cart {
	width: 600px;
	color: #660066;
}

#cart h1 {
	padding: 20px 0px 0px 15px;
	margin-bottom: 0px;
	width: 574px;
	font-family: tahoma;
	color: #FF0099;
	font-size: 20px;
	font-weight: bold;
	text-align: left;
	float: left;
}

.cartred{
  margin-top: 0px;
  margin-bottom: 0px;
  width: 590px;
  margin-left:5px;
  height: 40px;
  font-family: tahoma;
  font-weight: none;
	color: #660066; 
	text-align: left;
	vertical-align: middle;
	float: left;
}

.cartred p{
  padding-left: 15px;
  font-size: 8pt;
  font-weight: none;
}

.cartred p.zaglavljelevo{
  font-size: 10pt;
  font-weight: none;
  color: #000000;
}    

.cartred p.zaglavljedesno{
  font-size: 10pt;
  font-weight: none;
  color: #000000;
  text-align: right;
  padding-right: 15px;
}  

.cartred p.zaglavljedesnocena{
  font-size: 10pt;
  font-weight: none;
  color: #000000;
  text-align: right;
}  

.cartred p.zaglavljedesnoizmena{
  margin-left: 15px;
  font-size: 10pt;
  font-weight: none;
  color: #000000;
  text-align: right;
}

.cartred img{
  width: 40px;
  height: 40px;
  padding-left: 0px;
  padding-top:0px;
  float: left;
}

.cartred p.naziv{
  width: 235px;     
  font-size: 7pt;
}

.cartred p.kolicina{
  float: right;
  color: #660066; 
}

.cartred p input{
  margin-left: 15px;
  text-align: right;
  color: #660066; 
}

.cartred p a{
  margin-top: -5px;
  text-align: right;
  float: right;
  padding-right: 15px;
  color: #ff0099;
  font-size: 11px;
  text-decoration: underline;
}    

#poslednji_divider {
	margin-bottom: 2px;
	height: 1px;
	background-color: #c2c2cd;
	overflow: hidden;
	margin-right: 15px;	
}

.cartred p a img.link_obrisi {
  margin-right: 0px;
  margin-top: 1px;
  margin-bottom: -1px;
  padding-right: 0px;
  padding-top: 0px;
  padding-bottom: 3px;
  width: 54px;
  height: 18px;
}

.cartred p.cena{
  width: 80px;
  text-align: right;
  float: right;
}

/* End of Cart */


/* Cart Buttons*/
.cart_buttons{
  width: 600px;
  height: 37px;
  padding-top: 40px;
  padding-bottom: 30px;   
}

.cart_buttons img.confirm{
  float: left;
  width: 161px;
  height: 37px;
  padding-left: 110px;
}

.cart_buttons a img.cancel{
  float: right;
  width: 161px;
  height: 37px;
  padding-right: 110px;
}

.cart_buttons img.da{
  float: left;
  width: 92px;
  height: 30px;
  padding-left: 50px;
}

.cart_buttons a img.ne{
  float: right;
  width: 92px;
  height: 30px;
  padding-right: 300px;
}
/* End of Cart Buttons*/


/* Page Footer */

#page_footer {
	width: 768px;
}

#powered_by {
	padding-top: 17px;
	float: right;
	width: 305px;
	height: 30px;
	color: #9595c2;
	text-align: center;
}

#powered_by a {
	color: #9595c2;
}

#product_brands {
	float: left;
}

#product_brands ul {
	width: 768px;
	list-style-type: none;
}

#product_brands li {
	margin: 5px 6px 3px 3px;
	height: 60px;
	list-style-type: none;
	float: left;
}

#product_brands li.intel {
	width: 105px;
	background: url('images/intel.jpg') no-repeat 0px 0px;
}

#product_brands li.amd {
	width: 135px;
	background: url('images/amd.gif') no-repeat 0px 0px;
}

#product_brands li.fujitsu {
	width: 130px;
	background: url('images/fujitsu.gif') no-repeat 0px 0px;
}

#product_brands li.asus {
	width: 135px;
	background: url('images/asus1.jpg') no-repeat 0px 0px;
}

#product_brands li.toshiba {
	width: 115px;
	background: url('images/toshiba.jpg') no-repeat 0px 0px;
}

#product_brands li.hp {
	width: 90px;
	background: url('images/hp.jpg') no-repeat 0px 0px;
}
And index.php is:

PHP Code:
<?php session_start();
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html><head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<meta http-equiv="Content-Style-Type" content="text/css"><title>Online kompjuterska prodavnica</title>
<link rel="shortcut icon" href="/favicon.ico">
<link rel="stylesheet" href="style.css" type="text/css" media="screen">
</head>

<body>
<div id="container">

<!-- Start of Page Header -->
<?php
include 'header.php';
?>
<!-- End of Page Header -->

<!-- Start of Page Menu -->
<?php 
$menu
=file_get_contents("menu.php");
$base=basename($_SERVER['PHP_SELF']);
$menu=preg_replace("|<li><a href=\"".$base."\">(.*)</a></li>|U""<li class=\"current\">$1</li>"$menu);
if (
$sesija_loguser != '')
{
$regpage "registracija.php";
 
$menu=preg_replace("|<li><a href=\"".$regpage."\">(.*)</a></li>|U""<li class=\"logged\">$1</li>"$menu);}
echo 
$menu
?>
<!-- End of Page Menu -->
<div class="banner"><img src="images/indexpicture.jpg"></div>
<!-- Start of Left Sidebar -->
<?php 
$_SESSION
['sesija_tekuca_kat'] = 0;
include 
'leftsidebar.php';
/*$menu=file_get_contents("leftsidebar.php");
$base=basename($_SERVER['PHP_SELF']);
$menu=preg_replace("|<li><a href=\"".$base."\">(.*)</a></li>|U", "<li class=\"current\">$1</li>", $menu);
echo $menu; */
?>
<!-- End of Left Sidebar -->

<!-- Start of Main Content Area -->
<div id="main_content"><!-- Start of New Item Description -->
<div id="new_item">
<div id="new_item_header">
<h1>KAKO KUPOVATI</h1>
<h2>u našoj prodavnici</h2>
</div>
<div id="new_item_image"> <img src="images/naslovna.jpg" alt="" height="127" width="117" /> </div>
<div id="new_item_text">
<p>Kupovina u našoj prodavnici je veoma jednostavna.</p>
<p>Izaberite kategoriju proizvoda koji Vas zanima. Prikazaće Vam se trenutno raspoloživi proizvodi. Za svaki proizvod koji 
želite da kupite, unesite željenu količinu i kliknite na link <strong>Dodaj u korpu</strong>.</p>
<p>U bilo kom trenutku možete pogledati trenutno stanje Vaše korpe klikom na link <strong>Korpa</strong>.</p>
<p>Ako do sada niste kupovali u našoj prodavnici, neophodno je da se registrujete klikom na link <strong>Novi korisnik</strong>.</p>
<p>Registrovani korisnici mogu u svakom trenutku ažurirati lične podatke u odeljku <strong>Moj nalog</strong>.</p>
<p>Za sve dodatne informacije i sugestije na raspolaganju su telefoni i e-mail u odeljku <strong>Kontakt</strong>.</p>
</div>
<div class="clearthis">&nbsp;</div>
</div>
<!-- End of New Item Description -->
</div>
<!-- End of Main Content Area -->

<div class="clearthis">&nbsp;</div>

<!-- Start of Page Footer -->
<?php include 'footer.html';?>
<!-- End of Page Footer -->

</div>
</body></html>
Tnx in advance,
Nati