I have the PS2 mission light gun (got it off ebay for $26 shipped). It's a good looking gun! Also, my 27" TV is the old "cable" input. I'm running an ATI Radeon 9250 TV-out card with s-video. The s-video cable runs to a "converter" which in turn sends the signal to the cable tv.
The converter also happens to have the RCA inputs so I have the yellow video connector from the mission gun plugged into the "video in" yellow plug on the converter.
So far with smog's driver, XP will recognize the gun but I'm not having good luck being able to see the mouse pointer.
Here's a pic of the mission gun. I'm gonna mess around with the driver some more tonight. Let me know if you think this absolutely will not work!
Thanks,
stevodevo