I have the same modem, exept it's a PCI instead of an ISA....
no problems with it. Works fine for me and W2K recognizes it without having to install any extra drivers.
Plus, it connected really fast to my ISP.... I'm not sure if it was because of a better server that I was logging into (I used to connect through work) or if it was the modem, but I used to get high 40's kbps' and really good dl speeds
Take her easy