I can't configure my networks or use my wifi adapter

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http://askubuntu.com – I'm dual clienting windows vista and ubuntu 11.10, and i have it set to where i can choose which i use at startup. Now the problem i'm having is that i use and external usb wireless adapter and i can't figure out how to either install the program that runs it or even make ubuntu find it. The adapter works fine in windows but until i figure out how to make it work in ubuntu i can't update or even really use it there. I have crossover saved to the hdd but i truthfully don't know how to make ubuntu install it. And before i forget i'm using a netgear N300 wireless adapter model wna3100. Any help w (HowTos)