in win 98, put in the NT CD and open a dos window change to the cd drive letter, then change directories to the the i386 directory, then type: winnt /b (enter) and that should start the install. If you are using Fat32... it will not work, NT cannot read FAT32 change it to FAT16 with partition magic before you try to install and leave it fat16 so you can boot to either NT or 98.
good luck
Mick
If you ask for help from the forum, PLEASE take the time to let us know the results so we can all learn.
THE MICK
My system specs...
THE ES - 5,120 (640 8-way nodes) 500 MHz NEC CPUs. 8 GFLOPS per CPU (41 TFLOPS total). 2 GB (4 512 MB FPLRAM modules) per CPU (10 TB total) shared memory inside the node. 640 × 640 crossbar switch between the nodes with 16 GB/s inter-node bandwidth, using 20 kVA power consumption per node
The machine runs a version of the Super-UX UNIX-based OS. You mean it's not running Windows???