With reference to an eeePC 900 with EEEbuntu base installed, I had some troubles in getting AWN to work nicely, due to some lack of information.
Compiz is easy to install (Ubuntu Help):
apt-get install compiz compizconfig-settings-managerand also to start automatically, once you figured how to; edit /etc/xdg/lxsession/LXDE/config so that this line says:window_manager=compizAWN is in the repositories as well:
apt-get install avant-window-navigator awn-managerTo start it automatically (after Compiz is running) edit /etc/xdg/lxsession/LXDE/autostart appending this line:@avant-window-navigatorNow restart X by hitting ctrl-alt-bkspc.