hrmm - I'd guess that part is dynamically generated somewhere - looking at the page source I see this:
<tr>
<td class="thead" colspan="2">
<a href="http://www.nextelelite.com/forums/FlashChat/flashchat.php">Who's in Chat?</a>
</td>
</tr>
<tr>
<td class="alt2"><a href="online.php?"><img src="http://www.nextelelite.com/forums/images/misc/icon_chat.gif" alt="Who's in chat?" border="0" /></a></td>
<td class="alt1" width="100%">
<div class="smallfont">
<html>
<title>Who's in the chat?</title>
<head>
<style type="text/css">
<!--
.normal {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
font-weight: normal;
}
A {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
color: #0000FF;
}
A:hover {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
color: #FF0000;
}
-->
</style>
</head>
<body>
<center>
<p class=normal>There are 0 users in 1 rooms.</p>
<table border="1" cellpadding="1" class="normal">
<tr>
<th>ID</th>
<th>Name</th>
<th>Count</th>
<th>Users</th>
</tr>
<tr>
<td>3</td>
<td>Nextel Elite General Chat</td>
<td>0</td>
<td> </td>
</tr>
</table>
<p><a href="javascript:window.close()">Close</a></p>
<center>
</body>
</html>
</div>
</td>
</tr> your FORUMHOME template may just have a $variable name for the part <html> to </html>
A wee bit of searching on vB.org tells me that you installed "Darren's $5" flashchat? I'd check the instructions for that and if you added any temlpates look there for the code :)
btw - I just get a 404 Page Not Found when clicking the link to the flashchat page :S