Hi, it's doubtful the 10.2 Driver would work in 10.4, since een most 10.3 drivers do not work in 10.4.
Kind of funny they don't have later Mac drivers, when they have current Windows drivers.
What all files are on the CD it came with?
>The Mac drivers are for Mac Os X 10.4 and 10.5, i don't know if they support 10.6 but it'll probably work.
>It had an installer and appeared to install, but the WLAN utility would not work, so I uninstalled it.
Did you have it unplugged when Installing, then revboot, plug it in, then go to System Preferences>Network>Show:>Network Port Configurations, you should then get a popup that says :New Port Detected, say OK & drag it to the top of the list, run WLAn Utility then