iframes, tables, errors, oh my!
http://validator.w3.org/check?uri=http% … omatically)&doctype=Inline&group=0
Remove height:2200px; from your left and right divs, there is no reason for that to be there.
Try changing your main content table to this:
<table width="500" align="center" cellpadding="0" border="0">
Also, if you have only just recently rebuilt the site, I’d recommend rebuilding it again using proper standards for today’s web browser.