the reason you are seeing that error message is the XP disc from Dell does not contain your hard disk's SATA drivers. The only choice you have is using a floppy disk (or external drive if your machine doesn't have one) to add the drivers or to install a different OS, such as windows 7 that would permit you to had those drivers from disk if they weren't already natively provided.
Short of that, like a previous poster suggested, you can manipulate the BIOS settings for RAID performance to IDE or AHCI (should be set on SATA or RAID by default).