why wont this optin form show up?

Here is the code, but the optin form doesn't show up below the text. it showed up yesterday, but today it is gone. I wonder if I deleted some code that i needed. Any thoughts?

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<p><img title="Potty Training Guide" src="/wp-content/uploads/2011/03/7b-xsmall-18.png" alt="Get the Potty Training Guide" width="333" height="430" align="left" /></p>
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<div style="text-align: center;"><span style="font-size: x-large;"><strong><span style="color: red;">Tired of cleaning up the dog's mess on the floor?</span></strong></span></div>
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<div id="post_message_3523572" style="text-align: center;"><br /> <span style="font-size: medium;"><strong><em>Put your email below and Get one of our Bonus Reports from the Dog Training Master Class series absolutely Free! </em></strong></span></div>
<div style="text-align: center;"><span style="font-size: medium;"><strong><em><br /></em></strong></span></div>
<div style="text-align: center;"><span style="font-size: medium;"><strong><em>This 30 Page report will teach you how to Potty Train your dog very quickly!</em></strong></span></div>
<div style="text-align: center;"><span style="font-size: medium;"><strong><em><br /></em></strong></span></div>
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