Need Driver install files 56k v.90 winmodem , dont want to wast $100.00

[Raptor]

I bought a 3com U.S. Robotics 56k v.90 data/fax winmodem product code 568300
I had to re install the modem and found out the installation disk went bad.
I have looked all over your site, no luck , can you help me out so I dont
have to throw a 100 dollar modem in the trash?

thanks,
Raptor