It works all fine, it downscales the HD signals, but thats not a problem if using a non HD monitor.
Doesn't have to be chipped or "hacked", that makes it easier to do compared to fitting a new VGA BIOS chip
But again, the X2VGA is simplest way to go and can be used on other devices
Regarding your first post Rich, how are you plugging it into the PC, via the ariel plug?
If so, have you tried to re-tune it?
If it has composite in (yellow) hopefully you have the composite lead for the xbox, use that but you'll need an external audio device or composite to 3.5mm jack to use through PC