First, I dont know what did u do to templates
but, u have 3 times <BODY> tag and 2 times <HEAD> tags on one page!
Second, u have:
<table width="100%" border="0" cellspacing="0" cellpadding="3">
<tr>
<td class="tableheader" valign="top">Categories</td>
</tr>
<tr>
<td valign="top">
as u can see, first <TD> has class, but second doesnt, u should either put some class into second <TD>, or put it in the <TABLE>