I just enabled WPA on my TR2AP3 with the lan-express 802.11g card. Go to the link below, download and only install the utility, whalla it is compatible and it works. Installs all the wpa protocols and the best part is the tray utility. You can display the signal strength by db or % and it has a good sniffer page for wireless snooping and alot more!!!

http://www.dslreports.com/forum/remark,9123012~mode=flat