My computer was hacked too, and i know the guy who did it too! He had his own site, and when you are surfing on the internet you are downloaden things...he setup something like a trojan/worm (undetected of my virus scanner) and he fked my pc up too. I had backed up my pc too.
but sorry i can't help you something like sub7 or netbus is not going to work i think cuz you have to send the sever.exe to get the connection