After days of looking I went to GVC's website and downloaded a few drivers. After hours of frustration I finaly discovered that 2 of the drivers had parts I needed, so I put all the necessary peices of the 2 drivers together to make a single driver that finaly worked. I have only tried it in Windows 98SE and the markings on my modem are as follows
GVC Model F1156V/R2
Chipset markings Rockwell
If this driver works for you please e-mail me and let me know. Also please tell me what modem you used it for.