I believe you also need the firmware package for this card.
There is are three packages to my knowledge:
tools
ipw2100 driver
firmware
Check this out:
http://ipw2100.sourceforge.net/firmware.php
I also found a guide by SuSE person, but can't remember it now.
I have a Dell d600 which has a ipw2100 - I don't know SuSE at all and got very frustrated at not being able to download stuff with the crappy YaST.
I haven't had chance to pursue it, but I think i will put Ubuntu on it, or get good old Slackware on it...