|"Ive tried the usb scan disc and can't download the driver."|
Not certain what you mean by that, but if it (the Win98 machine) has a USB port, then generic storage drivers may be all you need:
Make sure you select the correct version of Win98 the machine has (First Edition or SE). You might also want to stick to a USB device which is 2GB or less; there are sometimes problems with very large flash-drives. Also, when you are working with the files, the rule is copy, not move. Should something go wrong during a move, the file(s) may be irreparably lost.
"Channeling the spirit of jboy..."