Macintosh OS X Instructions
Step 1: Find your Airport icon and click on it to bring down your Airport menu. Once your Airport card is turned on you should see the "MCC-Wireless network, and you simply click on it.
Step 2: After the Airport window comes up, you want to use your user name and password for network access. Both the user name and password fields are case sensitive.
Step 3: After you click OK you will get a window labeled "Verify Certificate". Click the "Show Certificate" button and then make sure there is a check mark next to "Always trust these certificates". Then click Continue.
It might take 20 seconds or so, but if you typed in a valid user name and password you should now be connected.