first, if you're going to use an XHTML doctype, you need to close ALL tags. This includes Meta tags. For example:
<meta name="author" content="buyanadrol.com" />
You also need to close all image tags:
<img src="images/banner1.gif" border="0" />
also, for every img tag, you need an ALT tag:
<img src="images/banner1.gif" border="0" alt="BuyAnadrol Logo" />
when you're done fixing this, recheck your site for html errors.
you also have no closing HEAD tag: