Rule #1 - Be Patient - Rule #2 - Don't ask when, if you don't contribute - Rule #3 - You have coding skills - LinuxMCE's small brother is available: http://www.agocontrol.com
It's probably a 6150 if it is built in. This chipset should be able to handle UI2 with NTSC/PAL, but will choke at HD resolutions. Either UI1 or the old pre-overlay UI will work with a 6150.