This should be real simple:

I have a Media Center PC, which means it's got one of those doors you
open on the front with all kinds of inputs on it.

Shouldn't I easily be able to hook up my camcorder outputs (composite)
into the composite inputs and just capture what's on my camcorder?

I start Windows Movie maker, but it only recognizes one capture
device, and that's the Dazzle DVC 90. This just doesn't work. (not
sure if it's the fault of Windows MM or the Dazzle)

Shouldn't it show other capture device(s) ? I've also got a Hauppauge
PVR-150 that works fine, so I would think it should show three capture
devices.

Please help - I'm stuck.

FWIW, I'm running XP Home, that's what it came with.

Please don't tell me to put the PVR-150 into my Linux box and capture
on that :-)

Scott