I have the same wifi adapter and I have got it to work on my iAtkos setup. The way I got it to work was by first starting up the Netgear tool and then Connecting my wifi adapter into the usb, then go to System Preferences > Network. Click on the + in the in the left hand panel and choose your Interface as the Ethernet Adapter (en2) or (en3).

Here's the tricky part, select your connection type as DHCP and enter your router address and click apply. OSX should start connecting to the router and will get you assigned an IP. If your network needs a key use the Netgear utility to create a profile of your network and save the password in the profile.

Let me know if that works for you...