* I searched the site, but honestly don't know what to search for, so forgive
me if this has been addressed*

My site, mommyhaven.com, contains a link on every post that points to a
printer-friendly version.

Example: <http://mommyhaven.com/forum/forum_posts.asp?TID=1926&PN=1>

Go to the VERY bottom of the page, and you see the "Printable Version" link. 
This link looks like this:

javascript:openWin('printer_friendly_posts.asp?FID=65&TID=1926','printer_friendly','toolbar=0,location=0,status=0,menubar=1,scrollbars=1,resizable=1,width=640,height=390')

...I ONLY want to download these printer friendly pages.  I can successfully
download everything, and they come through fine as .html files, but I'm having
trouble downloading only those pages.  

I have tried the file name and link filters with "printer_friendly" as the
string which seems common sense to do (no?)

I am reading through documentation and apparently I'm missing something. 
Please, please any suggestions?  Thank you!