You've got two random </a> tags here -
[code:1:14fbef753f]
<p> <img
src="images/xhtml_valid.gif"
alt="Valid XHTML 1.0!" height="15" width="80" /></a> </p>
[/code:1:14fbef753f]
and here:
[code:1:14fbef753f]
<p> <img
src="images/css_valid.gif"
alt="Valid CSS!" width="80" height="15"/>
</a> </p>
[/code:1:14fbef753f]
Remove them and your page will validate like it says it does......
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