I have this same problem on my Compaq.
I solved it via the following:
Go to: www.atheros.cz
& choose Vista 32/64
Go to the bottom of the page & click download (Either 32/64 bit asapplicable to your system)
I downloaded Vista-220.127.116.111-whql.zip for Windows 7
I extracted to same folder where the WinZip was downloaded.
I then started the network setup via Control Center (Must Login as Root)
Go to Network/Internet
Choose New Interface>Wireless
Choose the folder where you extracted the WinZip drivers to & select netathw.inf
Control Center will test your connection & you will be up & running
I have actually done this & my wireless interface is running perfectly !
Take Care !!