The "Problem is, that Hijackthis only fix the registry, but not delete any files. Avast should be able to delte the files(at least in safe mode). And you should also give adaware a try( www.lavasoft.com) because the Spy/Adware is still on your pc.

BTW forgot this. Its Spyware, too:
O4 - HKLM..\Run: [AltnetPointsManager] c:\program files\altnet\points manager\points manager.exe -s

BTW2: in which file does Avast find the torj-gen