I was a bit intrigued by your set up.... I didn't realize you really weren't looking for multiple choice and all the mockups I did were using MP....
But I had the following observations"
I could not find where you had added the instructions, nor could I find where you added the Check/Hint buttons, which did appear though the embedded pdf did not........
The code below shows an excerpt that explores what I could get working in IE and FF
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<td><iframe src="http://website/test.pdf" ><a href=http://website/test.pdf target=_blank>click if you can't see the pdf</a></iframe></td>
</tr>
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<td></td>
<td><embed height="200" src="http://website/test.pdf" type="application/pdf" ><a href=http://website/test.pdf target=_blank>click if you can't see the pdf</a></td>
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<td></td>
<td><object data="test.pdf" type="application/pdf" height="180">Object Only Appears in IE</OBJECT>Using the full URL did not work either......</td>
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