I've bought a USBUIRT, and was hoping to run my Media Centre using a Creative RM-1500 remote that came with the sound card on another computer. There is an existing device template in Linux MCE, so I was hoping that all would be working...
If all else fails, search eBay and purchase a MCE Remote. Should run you about $10-$20 + Shipping. That remote works well with the USB-UIRT.
I'm honestly not sure where to go from here... I've seen some references to adding A/V devices to control, but I'm not sure what sort of device I might need to add? My TV is on the S-Video-RCA output of my graphics card, so it doesn't get controlled by the media centre...
The remote, if it's working, should let you navigate around the screen to select music, videos, tv, etc. If you're looking at the A/V Devices, that comes later, when you want to train LMCE to turn on/off your TV, receivers, etc. First you need to get the remote working and then worry about controlling other devices.