(under XP PRO SP2)
I got my Motorola PC850 BT dongle working with a Wiimote.
It took the Widcomm update no problem.
Syncing was done by
BT icon - Add a BT device - (1+2 to activate discovery mode) - (click Nintendo**** icon while holding alt+S).
Brings up add services, checked boxes, fired up wiinremote, so far everything works.
Maybe it should be moved to the "working under XP/Linux section" in the working BT list?