The is one other possibility. Way back in the dark ages of DOS when we first hit the 512 Meg, limit Maxtor made drives that had a special jumper setting. This setting would cause the drive to appear as two distinct drives to the motherboard. IF that feature is again available, it would make it easy to use the full capacity of the drive without any special drivers (your 250 Gig drive would appear as two 125 Gig drives). Before trying any special lba48 patches, I would suggest calling Maxtor tech support.
There's a difference between needing help, and just being plain ole' lazy.
"You cannot teach a man anything. You can only help him find it for himself." Galileo Galilei (1564-1642)
HR20-700 with 2 TB, HR22-100, HR22-100, HR22-100, HR23-100 all running 0x5cd and networked.