My Turtle Beach Headphones won't work on Windows 7.

I recently bought a pair of headphones, the kind I got was the Turtle Beach X11 Force headphone for the Xbox 360. They work amazingly well and sound great when hooked up to my TV. However, when I hook them up to my pc, the mic works but the sound continues to go through my speakers and not my headphones. I am running windows 7. I tried to make sure they are hooked up right and they are. Yet, I can't seem to figure out what is making the sound not to come through the headphones. I wen't into control panel and the sound devices and it didn't even show headset or anything. If someone can help me it would be greatly appreciated.

i don't know if this helps but here you gohttp://www.youtube.com/watch?v=LYWvhNub0A4&feature=player_embedded#t=04m29s

have you tried to get PC driver for it? a quick search of TB site turned this up. http://www.turtlebeach.com/support/index.php?View=files

seems only these models work in windows 7, if thats true then id return those if possible and get ones that are assured to work on your OS. AA_Micro, AA_Micro II, AA_Amigo, AA_SRM, AK-R8, Riviera and Montego DDL

i dont really know i may completely off here but it seems to be a console only headset with no PC drivers. although the video posted above says you can connect to PC. i dont know what to belive currently.