Sorry for the bad news, but this configuration is more than one year old. GNOME2 is dead and I switched to KDE. It is not even easy for me to explain things in English but let my try.
What you see is Ubuntu 10.04 with GNOME2. Panel on top is GNOME panel with DockbarX and a selfmade background. Panel on bottom is Avant Window Navigator. It is only a panel applet to control the player.