Play Xbox on PC

Hi, I have the Pinnacle Movieboard Plus PCI so I can plug my xbox 360 into my computer through what i think is called composite? (the White, Yellow and Red cables that you can plug into your tv. I have those plugged into a cable that then plugs into a monitor slot.) So I was wondering if there were any free programs that would display what im doing on the xbox on my PC in Full Screen Mode.

I hope that makes sense and thanks in advance for the help.

Download.com get it from there. Then basically extract the .exe file then run it.GiveMeIce

Yeah I have it downloaded and everything but i dont know how to get it to display it. The only setting I got to work was the screen capture thing. I dont know how to make it see my xbox... And the video isnt very clear (for the screen capture thing at least). Thanks for all the help!