If Seagate offers a FAT32 utility similar to Western Digital's "DRFAT32" bios bypass overlay,
you may have to install an older 98-ME OS to have XP then perform a deletion, repartition,
and reformat where it then detects a new "RAW" partition available. XP should then install
without issues. You would perform this by upgrading through Windows as well as changing
from Fat32 to NTFS on the single primary. That was done easy enough with a 250gb drive
used as an XP single primary at this end. In the bios you would set the auto not lba mode.