Yeah, you'll have to subscribe again since your original subscription lapsed. I think if you try the account recovery on the 360, it should pull up all your info and then just tell you to resubscribe, so I'm pretty sure you won't lose any of your info.
I don't have PGR3 anymore. I got fed up with not being able to mod my cars. I'll be picking up Forza 2 later this year, though.
