Sata Driver for poweredge 400sc

I have downloaded a driver R99749.exe for use during installation of
WinXP onto a Sata HD. It states that during the process, (When F6 is
required for loading the driver/controller) I have to make a selection
from the following.
- Intel(R) 82801GR SATA RAID Controller
- Intel(R) 82801GR SATA AHCI Controller
- Intel(R) 82801FR SATA RAID Controller
- Intel(R) 82801FR SATA AHCI Controller
I am not setting up for Raid, so which AHCI Controller do I select GR or
FR, (whatever they mean)?

OR AM I USING THE WRONG SOFTWARE???