i'm in agreement with B here....
it looks like the google checkout is conflicting or not closed in the central div...I am not good enough to pinpoint it, but try this.....
remove the code highlighted in red and add the code highlighted in blue:
[COLOR="Red"]<html>
<body>[/COLOR]
<table>
<tr>
<td>
<form method="post" action="https://checkout.google.com/cws/v2/Merchant/500998272662571/checkout" name="BB_BuyButtonForm">
<input type="hidden" name="cart" value="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" />
<input type="hidden" name="signature" value="RoLMNrGFI9hhJth6rAwsg2XJhz8=" />
<input alt="" src="https://checkout.google.com/buttons/checkout.gif?merchant_id=500998272662571&w=160&h=43&style=white&variant=text&loc=en_US" type="image"/>
</form>
[COLOR="RoyalBlue"]</td></tr></table>[/COLOR]
[COLOR="Red"]</body>
</html></p>[/COLOR]
This code is on the template where you added the google checkout button