Installing MATE Desktop on Fedora 18 / 19
Installation is easy. Open a terminal and type:
$ sudo yum groupinstall "MATE Desktop"
Fedora will install all the packages needed to install MATE. Once the installation is completed, just logout of your current session and from the login screen click on the Session Manager and select Mate, login and you will now be greeted by Mate and the old familiar GNOME 2 interface.