I have the wavelan silver and it never shows up as an airport card in OS9 or OSX. For OS9 I used the official drivers I found on the internet and they work find. For OSX I used:
http://wirelessdriver.sourceforge.net/
Beta 5 works with 10.2.8
http://sourceforge.net/projects/wirelessdriver/
Beta 6 works with 10.4.x
When installed it just comes up in the system preferences under 'Other'.
For beta 6 you have to open it each time you restart or after waking the machine to make the card active. I cannot remember if this is true for Beta 5.
http://wirelessdriver.sourceforge.net/
Beta 5 works with 10.2.8
http://sourceforge.net/projects/wirelessdriver/
Beta 6 works with 10.4.x
When installed it just comes up in the system preferences under 'Other'.
For beta 6 you have to open it each time you restart or after waking the machine to make the card active. I cannot remember if this is true for Beta 5.