Recovering an old username

I wasn't quite sure where to post this, but I figured this to be the best place. I just remembered that I have an account from '05 and I'd like to recover it and become active on that account. The username was 'mobley' and it hasn't been active since 9/11/05. The registering email was [email protected] and it is no longer active since I don't have internet services from them anymore. I don't know what I would need to do to prove that I am the actual owner of this account. But I'm sure I can do whatever is necessary.

 

That name can't be recovered without access to the email. None of the IP's are showing in the database, nor any posts; there's nothing I can use to verify with. The data must have been erased in one of the rollbacks.