In your includes/header.asp see the code:
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<script language="javascript" src="includes/default_javascript_v9.js" type="text/javascript"></script>
</head>
<body>
Just after that something like:
<table width="100%">
<tr>
<td colspan="2"><center><h2>Welcome to This World Sucks Universal Forum. Registration is FREE and costs nothing.</h2> In order to post in these forums, or view all the Forum Topics you have to</center></td></tr>
Will give you this:

But without the red border