I'm not sure if I can be much help. I'm running Xandros and NTL broadband. There was no setting up to do, Xandros found all my hardware OK including my NIC card. I just clicked on Mozilla and connected straight to the internet.
You haven't mentioned if you connecting via USB or a network interface card. In either case its possible that SUSE is not finding the driver for either of these devices. If that's the case, do a search on the devices web site and see if they offer a driver for Linux.