I've managed to install it by forcing it to use a combination of Itron inf file, IR drivers from a XP CD and HID drivers from the WHS disc. This took a while to figure out, I'm by no means certain it's the correct or only way to do it. Eventghost simply doesn't pick up and input from the transceiver, having tried both the MCE plugin and the Generic HID plugin.
The device shows up as three separate HID devices, but none specifically as a keyboard or MCE remote. It functions fine on a normal XP system, working with the MCE plugin. For anyone that doesn't know, WHS is essentially Windows Server 2003. Can anyone help me get this working, or tell me if I'm wasting my time doing it this way?
Edit: Almost forgot, I'm using EG 0.3.7.r1387, WHS Power Pack 3. No error messages, except 'device not found' when attempting to use MCE plugin.