|After you have Wn98 working on the flash drive you then install the driver to Win98 after you have booted to it. The driver will automatically install to the proper folder. |
I think you may be confused about what the Sandisk Win98 driver is for. It is required to access a Sandisk flash drive when in Win98.
You don't need that driver to install Win98 on the flash drive. Your problem with drivers is with the drivers for the hardware in the WinXP computer.
Win98 can't configure more than 511MB of RAM. May not be able to access any SATA drives. Of course, Win98 is unable to read NTFS partitions either. Lots of issues trying to run Win98 on modern hardware.
Win98 may not be able to configure many of the hardware items.
How are you trying to install Win98 on the flash drive?