|You can do what kiskkizzle suggests, or you can do it an easier way.|
In most bioses for mboards that have built in SATA controllers you can set the SATA controller mode to IDE compatible or similar - in fact, on more recent mboards it's often already set that way when you first get the mboard. In that mode, SATA drives are detected as IDE compatible drives, which XP already natively has the support for. In that case, XP's (and 2000's) Setup finds the SATA drive(s) fine and you can install XP (or 2000) on it no problem.
You can leave the SATA controller mode in the bios set to IDE compatible, but that limits the SATA drive to the max IDE data burst speed - 133 mb/sec. If you want the drive to be in SATA mode, which has a max burst data transfer speed of 150 mb/sec for a SATA drive, or 300 mb/sec for a SATA-II drive if the SATA controller supports SATA-II, AFTER Setup has finished, you can install the drivers for the SATA controllers on the mboard, and then go into the bios Setup and change the SATA controller mode to SATA (a.k.a. AHCI).
However, the max data transfer burst speed is hype - your drive certainly does not run that fast all the time - it can only be maintained for very short periods of time, and it depends on the size of the memory cache built into the hard drive - after a short period of time of continuous max. burst speed data transfer, a few minutes at most, the cache contents are exhausted and the max speed the drive can transfer data at, if it continues to be accessed, is the max sustained data rate, which is much slower - e.g. well under 100 mb/sec for the fastest recent hard drives, much slower than that for older drives. You won't notice much difference between a drive with a 133 mb/sec and a 150 mb/sec max burst speed, and not that much more difference overall between a drive with a 133 mb/sec and a 300 mb/sec max burst speed.
How to do it in your case....
I looked at the manual for your mboard.....
Go into your bios Setup.
Onboard Device Configuration
Serial ATA configuration.
SATA Operation mode - choices are IDE (default) AHCI (SATA) or RAID (SATA RAID)
Set it to IDE, save settings, reboot.
Run XP's Setup.
If you later want to run the SATA controller(s) in AHCI (SATA) mode, after you have loaded the drivers for it (them) in Windows, go into the bios Setup again and set that setting to AHCI (SATA) mode.