The menu and button icons are disabled by default in Gnome 2.28, like I was telling you some time ago. Basically, this is how the menus and buttons look like in Gnome 2.28:
Now, for the buttons, run the following commands in a terminal:
gconftool-2 --set /desktop/gnome/interface/buttons_have_icons --type bool true
gconftool-2 --set /desktop/gnome/interface/menus_have_icons --type bool true
This is how the menus and buttons will now look like: