HOW TO - Avant-Window-Navigator

Open Terminal and install AWN:
sudo apt-get install avant-window-navigator

To add extra's
Open terminal:
gksu gedit /etc/apt/sources.list

Add the following two lines to the end of the file:
deb http://ppa.launchpad.net/awn-testing/ubuntu hardy main
deb-src http://ppa.launchpad.net/awn-testing/ubuntu hardy main

Save and exit.

sudo apt-get update
sudo apt-get install avant-window-navigator-trunk awn-manager-trunk awn-extras-applets-trunk

Source