Paid for an error, i seriously doubt it since there are thousands of registered s2 users.
if you are sure lfs does not recognize your GAMEpassword (and you are aware that WEB- and GAMEpasswords isnt the same thing, right?) go to
www.liveforspeed.net and login with your WEBpassword. Click "account details" and Change the GAMEpassword to something you will be able to remember and return to LFS and enter your newly modified GAMEpassword.
good luck. (also, there's both a beginners and a technical assistance forum)