Windows Media Center How to make aux input show up in media center

I just bought a WinTV-PVR 150. I've got the cable TV piece working but I'm
trying to figure out how I make the composite video and audio inputs come up
in media center when I connect my video camera to them. Can anyone tell me
how to do this?

Thanks.

I have been having the same kind of problem,
i have a pinnacle 310i (radio, digital tv, analog tv, s-video and composite
(via an adapter)
From what i have read, it is only posible to connect one feature of a card
(in my case i am using the digital tv),
so in order to get an input such as composite you will have to buy a new
card (maybe just an analog capture without a tuner would do the trick)
Please note that i am not 100% sure about whether buying a new card would
help as i do not actually want any of the other features excpt the radio,
if i buy a radio card soon, i will let you know if it works
hope this helps