PS2 Through TV Tuner on PC

Hello!

i have the ATi PCI 550 tv tuner. so far the tv works great =) its been a few months since i got the card and now i want to try hooking up my game console ps2 to it. for the first time, i installed catalyst media center. so far... it sucks haha. but yeah regardless, i still cant get my ps2 to work on it.

id either like help with this, or help with figuring out how to set it up through windows media center. i like media center better for tv and all that so that alternative would be much more pleasing to me =)

thanks!