Nice looking Query Strings?

[eluser]jabberjab[/eluser]
I'm getting a 404 with REQUEST_URI and with ORIG_PATH_INFO / PATH_INFO set it's not switching pages appropriately.

I'd really like to keep the structure but I just need one PHP action that can take in input in that form, as I want people to be able to submit via an offsite link for example. I am guessing I could just do the long index.php?c=user&m=add&title=title&url=url.com -- but I'd still like to be able to form my query strings as such; url.com/user/add?title=title&url=url.com