(EeePC900 booted from 2GB SD card works on apple airport extreme after this was done.)
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* need to switch networking out of network manager; edit and add wireless wlan wireless wlan0; and enter info on encrypted or open and if WEP SSID plus WEP Key information.
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* select the new wlan0, then select "manage with network manager".
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* Reboot USB.
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* Go to drop down box on network and delete network history. be sure to have radio box checked
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* Reboot again, On F1 neighborhood should see circles for wireless network connections.
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* Mouse over the one you want to use and enter passwords if requested on drop down box
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This is a preliminary writeup please edit if you find a faster way