What version of Ubuntu? I still show it in my 12.04, I would expect it to be in every version.
xserver-xorg-video-nouveau is in my synatic.

How are you currently booting?

Re: How To Install Nvidia Drivers [v8.1.2.12 by Bogan]. post 1126
http://ubuntuforums.org/showthread.p...43535&page=113
https://help.ubuntu.com/community/Bi...erHowto/Nvidia
http://ubuntuforums.org/showthread.php?t=2081649