DOS wont recognize a drive that large.
Can you boot up to win98 and see the drive in windows explorer?
if you can right click on that and choose format.
there are some conciderations you have to recognize. win98 has a limit of a hard drive partion to about 32 Gigs before you may run into problems.
Theoritcally a Fat32 partion could be around 2 terabytes...but the bios cant handle it.
The Bios itself on the mother board may not recognize a partition larger then a certain size.
you can try this: http://support.microsoft.com/support.../q263/0/44.asp
read through it it may help you.
and read this: http://peach.ease.lsoft.com/scripts/...in98-l&P=R7396
try those two links