Hi
I can see two problems.
If you look at the source code, you've got
<!--<a href="http://www.mangiagio.com/contenteditor_files/deli_2011.pdf">http://www.mangiagio.com/contenteditor_files/deli_2011.pdf<br />
</a></p>-->
The <!-- and --> in HTML are used to indicate that whatever is between those two should be read as a comment. http://htmlhelp.com/reference/wilbur/misc/comment.html explains this in more detail.
What this means is that your code does not appear when you view the page in your web-browser, as the browser thinks this is just a comment to be read by someone looking at the code.
If you remove <!-- and --> from your code, then the link appears in a browser like this:
http://www.mangiagio.com/contenteditor_
i_2011.pdf
The second issue is that the pdf the link points to doesn't exist in the location you've said.
Hope this helps.