ATI 9600XP and emachines T3092 help

Hi,
I am trying to install an ATI 9600XT into my emachines T3092. The booklet accompanying the graphics card said to install an AGP driver for a non-intel chipset based motherboard. I cannot find such a driver because the board has an Nvidia "nForce 2" based chipset, and I cannot find any AGP driver for it. I know that the AGP slot is plug and play ready for Nvidia cards, but I am not sure about ATI.
Since the present graphics card (Nvidia) is integrated into the motherboard, what steps do I need to take to ensure there are no glitches? Do I change the BIOS from 64 mb PCI to 128 mb AGP? Do I disable the Nvidia display adapter in Windows Device Manager? Do I need to uninstall the Nvidia graphicvs driver? Thanks for the help.

 

Hello,
I'm in your same situation, the only difference is the card model, mine is radeon 9550. Anyhow were you able to enable the card?. I haven't been able to do it and I'm planning to return it. Thanks!