i think this SHOULD do it :)
+www.name.com/folder/disppdf.asp?PdfID=*&nID=*

i derived this from
<http://forum.httrack.com/readmsg/5954/index.html>

and also from my own example.
-www.deviantart.com/view/*/?*
where i needed to exclude the search pages from the 
download, as they can get really millions of files :)

try it an let me know.
i am really curious if this will work for you. :)