I have and am using the same card. you say you installed the rpms, was the card not detected during install? mine was, so all necissary files were loaded at install.
I did have a problem for a while where i had to restart one of the deamons - dhclient - i found this out by doing ctrl+alt=F10 and saw it was failing so i had to restart it. fortunately this doesn't happen anymore and all works fine now.
have you enabled control of wireless to Knetworkmanager or the old ifup? if the former is wireless enabled, does it see any networks, configured? the latter does ifup eth1 do anthing?
have you found anything in your boot log thats relevent?