The first row are the stock presence icons and the second row are the icons I made to replace them. Run
cd /usr/share/icons/hicolor/40x40/hildon ; tar xzvf new-presence-icons.tar.gzto extract them to /usr/share/icons/hicolor/40x40/hildon (overwriting the stock icons), run
gtk-update-icon-cache -f /usr/share/icons/hicolorand then restart hildon-desktop service or reboot.
Repeat the process using the stock icons download to restore.