Do you know if you have an SATA drive? If you do, to install xp you need AHCI drivers or put your drives in compatibility (ide) mode (this can be done through bios). You can slipstream the drivers on to an xp disk with nlite (look it up on google) if you really must have ahci, or use a usb floppy drive
. Look for AHCI drivers are Toshiba website, and see how that goes, or the much easier path would just to put it into ide mode if you're lazy Dx.