Hi
Using USB dongle rev B, had lots of trouble getting this to work with drivers on CD and ndiswrapper, however went to their site and downloaded the win98 drivers, deleted all existing wireless connections and created a new WLAN0 connection with the win98 driver and it works a treat (using it now).
http://support.dlink.com/
Helpfully they also provide links to linux prism drivers wlan-ng, but I've not tried using those yet.
Note: I did all this through the Mandriva control center, not using the console commands.
Hope this helps
Kieran