All email accounts have been generated, so if you created an account and didnt get a welcome email, you need to re-request it. Its also possible the address you request was not available, or the password was too short. Gmails new minimum password length is now 8 characters, and we had a minimum of 6 characters on the signup. On the last email group of emails we just activated, 165 new accounts were created and 45 failed (from passwords being too short).
Again, if you want an email address, and didnt get a welcome email, please request a new account.
Also, if you havent logged in since 2008, your account was deleted.