Hi
I would borrow a external USB DVD drive
Boot off windows XP cd
It hard disk controller & drive is detected the XP setup will offer tp partition the drive then format
Then start windows install
If hard disk not detected may be bios setting for hard disk controller
If in sata ahci mode XP will not have drivers
Select ATA compatibility mode
Alternative if you upgrade to 2GB ram buy & install windows 7
As support for XP ends in a few weeks
Regards
Mike Barnes