Trying to install Dockbarx Applet on Trisquel

Hello again guys, I was trying to install the Dockbarx Applet on the Gnome2 Trisquel default theme, but, after trying a lot, I didn't get to make it work, it just does not appear on the applets window, but it does on accesories, as an external application (and that it is not what I want, I want to replace the default windows magnament system with it, like in this video: http://www.youtube.com/watch?v=A-gBNNlY_dw 2:35)

Can anyone help me with this?