[ubuntu] Intel wireless not wroking

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http://ubuntuforums.org – hi i had windows 8 and it crashed, so i decided that i would install Ubuntu to replace it. i installed 12.10 and my wireless card (for wifi and wimax) will not connect to any network. my computer us an asus u56-e with a Intel centrino wireless-n 6150 wifi wimax card. i have tried to get the drivers from intel but i do not know how to install them because i am new to ubuntu and have experience with windows when you click on the networking button in the top right corner it show all the wireless networks, but when i try to connect to my home network it prompts me to enter my password (which i did (Hardware)