Cerebral Palsy Support Group
Cerebral palsy or CP is the most common childhood physical disability. It is a permanent physical condition that affects movement. There is no cure for cerebral palsy, but various forms of therapy can help a person with the disorder to function more effectively. If you or a loved one has cerebral palsy, join the group to share your experience or get advice from others.

I've never used any of these but there was a big article on dating sites for people with health conditions in the NY Times a bit ago. The woman they profile in the article has CP. So maybe this will be helpful?
http://www.nytimes.com/2010/12/28/health/28dating.html
(I never remember if this site censors links, but if you search the NYT site you should find it.)
DQ
Have U done a google search, allso U might want to try muliple sclrosis dating site, cause cp and ms r simuler
I have never heard of any dating sites(or even really looked i guess) but i was wondering the same thing.
Amy