I am hoping someone can help me. I have a navbar sitting above a flash swf movie. In IE, the navbar drops behind the swf movie. I set the index of the index of the "nav" div to 1 and the index of the "flash" div to 0. I also set <param name="wmode" value="transparent"> in the flash movie. It works fine in Firefox, but in IE, the navbar stays behind the swf.

You can see my issue in IE at test.cnjwebsolutions.com

I am hoping someone can show me what I am doing wrong.
Thank you, Buffmin
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

<meta charset='UTF-8'>
<title>Buffmin</title>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><style type="text/css">
<!--
#wrapper{margin:0px auto;border:solid 3px #B0BBCF;width:1000px;}
#main_nav{width:1000px;height:400px; background-color:#e9e9e7;margin:0px auto;}
#flash_div{width:900px;margin:0px auto;height:299px;padding-top:50px; z-index:-1;}

/*---------------------Navbar CSS --------------------------------------*/
.preload1 {background: url(pro_dropdown_2/three_1.gif);}
.preload2 {background: url(pro_dropdown_2/three_1a.gif);}

#nav {padding:0; margin:0; list-style:none; height:38px; background:#fff url(pro_dropdown_2/three_0.gif) repeat-x; position:relative; z-index:500; font-family:arial, verdana, sans-serif;}
#nav li.top {display:block; float:left; height:38px;}
#nav li a.top_link {display:block; float:left; height:35px; line-height:33px; color:#ccc; text-decoration:none; font-size:11px; font-weight:bold; padding:0 0 0 12px; cursor:pointer;background: url(pro_dropdown_2/three_0.gif);}
#nav li a.top_link span {float:left; display:block; padding:0 24px 0 12px; height:35px; background: url(pro_dropdown_2/three_0.gif) right top no-repeat;}
#nav li a.top_link span.down {float:left; display:block; padding:0 24px 0 12px; height:35px; background: url(pro_dropdown_2/three_0a.gif) no-repeat right top;}

#nav li:hover a.top_link {color:#fff; background: url(pro_dropdown_2/three_1.gif) no-repeat;}
#nav li:hover a.top_link span {background:url(pro_dropdown_2/three_1.gif) no-repeat right top;}
#nav li:hover a.top_link span.down {background:url(pro_dropdown_2/three_1a.gif) no-repeat right top;}
#nav li:hover {position:relative; z-index:200;}

#nav li:hover ul.sub
{left:1px; top:38px; background: #c7d0e1; padding:3px; border:1px solid #1A4A99; white-space:nowrap; width:90px; height:auto; z-index:300;}
#nav li:hover ul.sub li
{display:block; height:20px; position:relative; float:left; width:90px; font-weight:normal;}
#nav li:hover ul.sub li a
{display:block; font-size:11px; height:18px; width:88px; line-height:18px; text-indent:5px; color:#000; text-decoration:none;border:1px solid #c7d0e1;}
#nav li ul.sub li a.fly
{background:#c7d0e1 url(pro_dropdown_2/arrow.gif) 80px 6px no-repeat;}
#nav li:hover ul.sub li a:hover 
{background:#1A4A99; color:#fff; border-color:#fff;}
#nav li:hover ul.sub li a.fly:hover
{background:#1A4A99 url(pro_dropdown_2/arrow_over.gif) 80px 6px no-repeat; color:#fff;}

#nav li:hover li:hover ul,
#nav li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover li:hover ul
{left:90px; top:-4px; background: #c7d0e1; padding:3px; border:1px solid #1A4A99; white-space:nowrap; width:90px; z-index:400; height:auto;}

#nav ul, 
#nav li:hover ul ul,
#nav li:hover li:hover ul ul,
#nav li:hover li:hover li:hover ul ul,
#nav li:hover li:hover li:hover li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#nav li:hover li:hover a.fly,
#nav li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover li:hover a.fly
{background:#163f83 url(pro_dropdown_2/arrow_over.gif) 80px 6px no-repeat; color:#fff; border-color:#fff;} 

#nav li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li:hover li a.fly
{background:#c7d0e1 url(pro_dropdown_2/arrow.gif) 80px 6px no-repeat; color:#000; border-color:#c7d0e1;} 

/*----------------End of the Navbar CSS ------------------------------------*/
-->
</style>
<script src="Scripts/AC_RunActiveContent.js" type="text/javascript"></script>
</head>	

<body>
  <div id="wrapper">
<!------------------- Start of Navbar code ------------------------------->
    <ul id="nav">
	 <li class="top"><a href="#nogo1" class="top_link"><span>Home</span></a></li>
	 <li class="top"><a href="#nogo2" id="products" class="top_link"><span class="down">Products</span></a>
	   <ul class="sub">
			<li><a href="#nogo3">Cameras</a></li>
			<li class="mid"><a href="#nogo7">Lenses</a></li>
			<li><a href="#">Flash Guns</a></li>
			<li><a href="#">Tripods</a></li>
			<li><a href="#">Filters</a></li>
	   </ul>
	</li>
	<li class="top"><a href="#" id="services" class="top_link"><span class="down">Services</span></a>
		<ul class="sub">
			<li><a href="#">Printing</a></li>
			<li><a href="#">Photo Framing</a></li>
			<li><a href="#">Retouching</a></li>
			<li><a href="#">Archiving</a></li>
		</ul>
	</li>
	<li class="top"><a href="#" id="contacts" class="top_link"><span class="down">Contacts</span></a></li>
	<li class="top"><a href="#" id="shop" class="top_link"><span class="down">Shop</span></a></li>
	<li class="top"><a href="#" id="privacy" class="top_link"><span>Privacy Policy</span></a></li>
</ul>
<!------------------- End of Navbar code ------------------------------->

<!------------------- Start of Flash code ------------------------------->
    <div id="flash_div">
      <script type="text/javascript">
AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0','width','900','height','270','src','ddny_foundation_11_8_11','quality','high','pluginspage','http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash','movie','ddny_foundation_11_8_11' ); //end AC code
</script><noscript><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0" width="900" height="270">
        <param name="movie" value="ddny_foundation_11_8_11.swf" />
        <param name="quality" value="high" />
        <param name="wmode" value=" transparent" />
        <embed src="ddny_foundation_11_8_11.swf" quality="high" wmode="transparent" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="900" height="270"></embed>
      </object>
    </noscript></div><!-- end of flash wrapper -->     
<!------------------- Start of Navbar code ------------------------------->
</div><!-- end of wrapper -->

</body>
</html>