Currently Being ModeratedJan 24, 2013 2:32 PM (in response to Arvpacris)
If you can at least remember your apple ID, you can prob. reset the password.
After you have your Apple ID and password you can log-in to Sign-in Button on the bottom of the APP Store page.
If all else fails, (and assuming you havent already purchase a TON of other apps) you could just create a New Apple ID.
Hope that helps!