There's another very simple solution to this. In your hosts file, make an entry like this:
It will point the URL for tribalfusion, back to your local machine.

Don't do this manually, use one of the anti-spyware programs to do it. Spy Sweeper (one month free from webroot.com) will do this (Shields > Hosts File > check 'Common Ad Sites Shield', ... and 'Hosts File Shield' while you're there). I believe SpyBot S&D and Ad Aware SE will do also. I use all three, but only use one (Spy Sweeper) to modify the hosts file.