Win98SE driver for PowerUp 2GB USB 2.0 SpeedDrive Portable Flash Drive with part number GEN-52048.
I got this on CD when I called the manufacturer.
In Canada TigerDirect.ca had sold these USB drives, but they have stopped selling them now. I installed the driver on my Win98SE PC, works perfectly.
Unzip, double click on setup, select the only product listed, complete setup, Reboot PC, then insert the USB drive.