Dmitry Shachnev has written a small guide to get a fully working classic GNOME session in Ubuntu 11.10 Oneiric Ocelot, similar to Ubuntu 11.04 Natty Narwhal.
The guide includes: use the GTK3 indicator applet instead of the standard systray, fix the panel background for Ambiance, get Compiz to work and use the Ubuntu logo in the applications menu applet.
Check out Dmitry's guide @ http://mandriver.users.sourceforge.net/classic-gnome-guide.html
