If its a true DWL-650, this will work, and should work well under the orinoco_cs module. In order to get that to load, just stick the hermes.conf file from
here.
in /etc/pcmcia.
Then check out the command line utility, iwconfig, which will let you set essid, rate, encryption, yadyada.
You have the orinoco_cs modules compiled... its just the default cardmgr config file doesn't have an entry for them.
Cheers,
Finegan