I think the user simply gained admin access and deleted everything, but the boards are still there. I cant get admin access back. Is there any way to get that admin access back just long enough to get his IP information?
I guess it's too late now, but for future reference, you can do this via the database if you have phpmyadmin access. Also for future reference...you might want to consider a more complicated password (if you have not done so already) and also password-protect the /admin/ directory for added protection