it helps a lot when you post the code in question .. i viewed source of your page and see this at the bottom:
HTML Code:
<!--bottom bar-->
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<td align="center"><img src="images/home/pas-buttom.jpg" width="1004" height="53" /></td>
</table>
you have no <tr> </tr> tags in that table. maybe this is the problem?
one thing i recommend for debugging html tables is to set your
border attribute to
1. i.e.
HTML Code:
<table border=1>
this will make it easy to figure out which table is causing the problem. then you can find the code to begin to modify easier.