CodingForums.com - Javascript Errors!! Lightbox and toggle

Yep your right I don't understand Jquery yet but i will learn soon :o

ok so I only need to include the latest version of jQuery once?

here's the rest of my code for the site
Code:
<!--Bing Webmasters Verification-->

<meta name="msvalidate.01" content="97E40E7913B3EFAE99B0E62C2A3B2CEA" />

<!--Google Webmasters Verification-->

<meta name="google-site-verification" content="TEp_zmRBpKI11TgL7UGDBoR1WwMKsbzQ_G0awJiH1oU" />

<!--Switch Content Used in Sidebar Navigation)-->

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>

<script type="text/javascript">

jQuery(document).ready(function() {

  jQuery(".toggle-content").hide();

  //toggle the componenet with class msg_body

  jQuery(".link-toggle").click(function()

  {

    jQuery(this).next(".toggle-content").slideToggle(500);

  });

});

</script>

<script type="text/javascript">jQuery.noConflict();</script>





<!--Tabs Files-->

<!--<link rel="stylesheet" type="text/css" href="style/tabcontent.css" />



<script type="text/javascript" src="applications/js/tabcontent.js">



</script>-->

<!--Contact Form validation-->

<script src="information/information/free_validation.js"></script>

<script>

        required.add('Full_Name','NOT_EMPTY','Full Name');

        required.add('Email_Address','EMAIL','Email Address');

        required.add('Your_Message','NOT_EMPTY','Your Message')

        </script>

<script type="text/javascript">



/* Modified to support Opera */

function bookmarksite(title,url){

if (window.sidebar) // firefox

        window.sidebar.addPanel(title, url, "");

else if(window.opera && window.print){ // opera

        var elem = document.createElement('a');

        elem.setAttribute('href',url);

        elem.setAttribute('title',title);

        elem.setAttribute('rel','sidebar');

        elem.click();

} 

else if(document.all)// ie

        window.external.AddFavorite(url, title);

}

</script>



<!-- Start WOWSlider.com HEAD section -->

        <link rel="stylesheet" type="text/css" href="information/information/applications/slider/engine1/style.css"/>

        



<script type="text/javascript" src="information/information/applications/slider/engine1/jquery.js"></script>

        <script type="text/javascript" src="information/information/applications/slider/engine1/wowslider.js"></script>

        <!-- End WOWSlider.com HEAD section -->



<!-- Show Cart Content & Value -->

<script type="text/javascript">

function upDate(){

qty="0"; sub="0.00";

querystring=parent.document.URL.substring(document.URL.indexOf('?')+1);

if (querystring.charAt(0)!="q"){querystring="";}

if (querystring){

today=new Date();

millisecs_in_half_hour=1800000;

expireDate = new Date(today.getTime() + millisecs_in_half_hour);

document.cookie=querystring+"&exp="+expireDate+";path=/;expires="+expireDate.toGMTString();

}else{

if (document.cookie !=""){

thisCookie=document.cookie.split("; ");

for (i=0; i<thisCookie.length; i++) {

if (thisCookie[i].split("=")[0]=="qty"){

querystring=thisCookie[i];

expireDate=thisCookie[i].split("exp=")[1];

}}}}

if (querystring){

querystring=querystring.split("&");

qty=querystring[0].split("=")[1]; if (qty==""){qty="0";}qty=parseInt(qty);

sub=querystring[1].split("=")[1]; if (sub==""){sub="0.00";}

}

update=document.write("Items in cart: "+qty+"<br>Subtotal: "+sub+"");

return update;

}

</script>



<!-- Tabs for product pages -->

<link rel="stylesheet" type="text/css" href="style/tabcontent-products.css" />



<script type="text/javascript" src="applications/js/tabcontent-products.js">

</script>



<script type="text/javascript" src="applications/js/lightbox/prototype.js"></script>

<script type="text/javascript" src="applications/js/lightbox/scriptaculous.js?load=effects,builder"></script>

<script type="text/javascript" src="applications/js/lightbox/lightbox.js"></script>