I have successfully used a Netgear WG511 v2 pcmcia card in an earlier version of TC2.x using ndiswrapper and the drivers from windows2000.....WG511v2.inf...WG511v2.cat and WG511v2.sys .
I found to connect to my home network using WEP, that I had to issue key [1] open command like this:
sudo ndiswrapper -i /mnt/hda3/Windows2000/WG511v2.inf
sleep 5
sudo modprobe ndiswrapper
sleep 5
sudo iwconfig wlan0 essid xxxxxxxxxxxx key xxxxxxxxxx key [1] open
sleep 5
sudo udhcpc -n -i wlan0
Of course put your network essid and key in for the x's
I can not remember for sure if I tried winxp drivers for WG511v2,,,but I think I did and had problems.