Binman Brian - large scale hacker?

[Pimp of Pimps]

My forum recently got hacked by someone named Binman Brian, who identifies himself as Brian J. Wright offline.

http://www.millenniumforums.com/

I checked out his Facebook page which is linked on the site (can be found here) and it seems as if this isn't a first offense.

So my questions are these: how do I go about getting rid of what he's done to my homepage? I can still access the site and so can others, but it's still problematic. Do I contact the host?

Has this been an issue for people here in the past?

Is this guy a known hacker?