This was asked originally for me.
Bios, I set PCI card as main one.
Windows. Win XP SP3. Stuck the card in and it installed itself, as its not for games, I didnt care for the performance as long as it could render web pages properly.
Setup the PCI card as main within Windows, a few reboots later i was done.
I guess this setup works with this chipset / mobo, luck of the draw.