Add "Minimize/Maximize/Close" button in gnome 3

I have installed Fedora 15 with gnome Desktop. Unfortunately, some features are not available in the windows. I find this very smart tutorial to show how to add some "classic" buttons.

http://mustaxe.blogspot.com/2011/05/fedora-15-and-gnome-3-add-minimize.html

I tried it my self and it worked very fine.