[delmarva]

I have a header for my vbulletin forum and on the left of the forum, there are 4 images with link mapping enabled on them. They work fine when viewed by Firefox, but not on Internet Explorer. I am using dreamweaver 8 for the design work. The site is http://www.delmarvafishing.com/forum. Here is the source code for the header itself:

<!-- logo -->
<a name="top"></a>
<table width="450" border="0" align="right">
  <tr>
    <td width="0"><div align="right"></div></td>
    <td width="77"><img src="/forum/images/header/home.gif" width="75" height="40" border="0" usemap="#Map" /></td>
    <td width="77"><img src="/forum/images/header/pictures.gif" width="75" height="40" border="0" usemap="#Map2" /></td>
    <td width="77"><img src="/forum/images/header/store.gif" width="75" height="40" border="0" usemap="#Map3" /></td>
    <td width="82"><img src="/forum/images/header/subscribe.gif" width="80" height="40" border="0" usemap="#Map4" /></td>
    <td width="75"><img src="/forum/images/header/advertise.gif" alt="Advertise" width="75" height="40" border="0" usemap="#Map5" /></td>
    <td width="32">&nbsp;</td>
  </tr>
  <tr>
    <td height="86" colspan="6"><script language='JavaScript' type='text/javascript' src='http://www.mydelmarva.com/adx.js'></script>
<script language='JavaScript' type='text/javascript'>
<!--
   if (!document.phpAds_used) document.phpAds_used = ',';
   phpAds_random = new String (Math.random()); phpAds_random = phpAds_random.substring(2,11);
   
   document.write ("<" + "script language='JavaScript' type='text/javascript' src='");
   document.write ("http://www.mydelmarva.com/adjs.php?n=" + phpAds_random);
   document.write ("&amp;what=zone:7");
   document.write ("&amp;exclude=" + document.phpAds_used);
   if (document.referrer)
      document.write ("&amp;referer=" + escape(document.referrer));
   document.write ("'><" + "/script>");
//-->
</script><noscript><a href='http://www.mydelmarva.com/adclick.php?n=a1f23d38' target='_blank'><img src='http://www.mydelmarva.com/adview.php?what=zone:7&amp;n=a1f23d38' border='0' alt=''></a></noscript>
&nbsp;</td>
    <td height="86">&nbsp;</td>
  </tr>
</table>
<table border="0" width="$stylevar[outertablewidth]" cellpadding="0" cellspacing="0" align="center">
<tr>
    <td align="$stylevar[left]"><a href="$vboptions[forumhome].php$session[sessionurl_q]"><img src="$stylevar[titleimage]" border="0" alt="$vboptions[bbtitle]" /></a></td>
    <td align="$stylevar[right]">&nbsp;
        
    </td>
</tr>
</table>
<!-- /logo -->

<!-- content table -->
$spacer_open

$_phpinclude_output
<map name="Map" id="Map"><area shape="rect" coords="4,4,72,37" href="/index.html" />
</map>
<map name="Map2" id="Map2"><area shape="rect" coords="4,2,72,38" href="/album" />
</map>
<map name="Map3" id="Map3"><area shape="rect" coords="4,4,73,40" href="/store" />
</map>
<map name="Map4" id="Map4"><area shape="rect" coords="4,4,75,37" href="/forum/payments.php" />
</map>
<map name="Map5" id="Map5">
  <area shape="rect" coords="69,20,70,22" href="http://www.mydelmarva.com/ads.html" />
<area shape="rect" coords="4,0,74,40" href="http://www.mydelmarva.com/ads.html" />
</map>

Thanks for any help.