does anyone know any for real free trial word blockers/time restriction internet usage software downloads that really work

He is very addicted and I cant get him off this game. He is way to smart at computers. I stoped paying the wow bill, but he made a charecter on his friend’s account. Then I stoped paying for the internet, but he has wireless and uses our neighbor’s. Then I put parental control software on his computer to block world of warcraft but he cracked my password and deleted it. This has happend for every one I tried. ONE of the parental controls worked but he formated the computer and installed it again. I can’t take the discs away because he downloads the game. I take his computer away but he goes nuts and screams and swears. He is tearing our family apart from this addiction and sadly I dont know what to do about it. Anybody have any ideas? Do you know anybody addicted to it or was?