That doesn't install Gnome 2.2, it installs a Gnome 3 skin that kinda sorta looks like 2.2 but isn't. I went through this same stuff recently, tried xfce for a

That doesn't install Gnome 2.2, it installs a Gnome 3 skin that kinda sorta looks like 2.2 but isn't. I went through this same stuff recently, tried xfce for a while, finally gave Gnome Shell a week and have grown to like it. I don't miss 2.2 anymore.