|This is old, but...|
You need to enable "ATA-6" 48-bit LBA in NT 4.0 in order to exceed 137GB. The default LBA for NT 3.x, NT 3.5x, and NT 4.0 is 28-bit.
Here it is: Universal ATA driver for Windows NT3.51/NT4/2000/XP
Please note this solution has not been tested by me and I cannot be responsible for any loss that may arise out of the use of this product!
Here is some additional information: Windows NT 4.0 Large HDD Information
Let us know if this works.