[z3r0]

I think tools.php will fix this, here is something from an old post that I think will do the job.

If you have lost your access information for your Admin account and can not reset the password using normal procedures, then please do the following:
- Register a new regular forum account (or you could use an existing account).
- Upload tools.php from the 'do_not_upload' folder of your vBulletin distribution to your admincp directory.
- Now point your browser to tools.php.
- Choose "[Reset Admin Access]" to promote the new user account to admin
- Once your problem is fixed please remove tools.php again from the server.
- Optional: If needed add the userid of the new user to the super administrator list in your config.php