PCI wireless card not recognised in 7.2

Hi, New to list, please forgive usual linux newbie errors. Have PCI Sparklan (read gemtek) wireless card (PRISM I believe) and have just finished reading/searching 12 months archived list-mail with no real insights. Cannot get vendor supplied driver to compile (make complains about missing rwsem.h file) and am not sure this is the right approach in the first place as this seems to pertain (from the archive) to pcmcia rather than PCI cards. All suggestions appreciated as I am a relative newbie and could be completely on the wrong track. Thanks Mike