the sound works fine when im watching tv and everything else
Can you hear the TV when you are capturing though? Make sure your line-input isn't muted, and that you have the line-in checked in the record properties of the volume control. I have gotten into the habit of leaving the volume control minimized to the task bar, so that I can check my inputs.
Also make sure you have the AIW properly connected to your soundcard, externally using the line-out of the multigang output dongle of the Radeon into the line-in of your soundcard...or internally using the CD-ROM audio connection into the Radeon's internal connector and then into the CD audio input of your soundcard.
Good luck!