The Lucent/Orinoco WaveLAN Silver and Gold cards are the same hardware as the original Apple AirPort card. Indeed, the first Graphite base station came with a Lucent WaveLAN Silver card inside it as the WiFi chip.
All are capable of WPA...
When running OS X 10.3 or later. Neither OS X 10.2 and earlier, nor any "Classic" version of the Mac OS (8, 9.) support WPA2 using built-in utilities.
Note that some third-party WiFi cards may support WPA on OS 9 using their own custom drivers, but I don't know of any. I just know that it would be the only way for it to be supported.
All are capable of WPA...
When running OS X 10.3 or later. Neither OS X 10.2 and earlier, nor any "Classic" version of the Mac OS (8, 9.) support WPA2 using built-in utilities.
Note that some third-party WiFi cards may support WPA on OS 9 using their own custom drivers, but I don't know of any. I just know that it would be the only way for it to be supported.