From what I can remember:
The remote is part of the TV tuner card package which is an Avermedia TVCapture 98 card using the BT878 driver chip (at least on the 8886) your may be different. It's been awhile since I used the TV tuner software that shipped with the laptop but if you have that installed and QuickTV running in the system tray you should be able to use the cursor keys on the remote.
I'll try experimenting with the drivers from AverMedia (
http://drivers.aver.com/software/308software/Winxp.zip) are the latest drivers I downloaded today.
Also, dScaler or WinDVD Recorder are both better then the included TV software.