Newbie Zenner, using 1.38

Im just recovering from a hack with the courtesy of Godaddy backup. Everything is back to normal. I applied the patch and everything seems fine until I went into the admin section to change the username and password.

The Problem:

Can't change usename or the password. The password won't reset and I can't add any other user or admin.

Could Goddaddy had done something to the database to cause this?

Please help,

Kind Regards,

Undah