I see you're using ASP... if you download an app called URLREPL (URLreplacer) then you can convert strings to 'virtual' filenames.

So

http://FriendSite.com/funnies.asp?id...+thinking.html

Becomes

http://FriendSite.com/funnies_conten...+thinking.html

Just make sure that you make your URLREPL.INI (which is in the windows folder) readable by everyone, but readonly.

It's downloadable and free from here...

URL Replacer, IIS url rewrite, mod rewrite url

If you like the software, please signup to http://FriendSite.com
A free social networking & social bookmarking site - thanks!
Rick