What i normaly do with modems is use Google, and search for the chip number....for example:-
I have a Rockwell 56k modem here...and on the main chips it says:
RS56-PCI
R6793-12
@ROCKWELL 98
9920 B81871.5
MEXICO
So in google i put "R6793-PCI" and the second result was:-
http://www.driverforum.com/modem/597.htmlAlways works for me
Just take out ur modem, and right down the numbers on the main chip....google em

Edit: Maybe i should of put "R6793-12" instead....but hey

(just woke up)