Re: DRIVER NEEDED: Atheros Communications, AR5212 802.11a/b/g Wireless Adapter (Windows XP Professional)
Atheros doesn't make NICs, they make chipsets. Most likely your card is built by Airlink model 101. If so, you may be able to get this driver to work:
AWLC4030 Driver v220.127.116.113
Also, the Netgear wg311 v1 uses the Atheros Ar5215 chipsets.