Board Thread:Support Requests - Getting Technical/@comment-3237614-20130309041829/@comment-25602348-20130312180156

Try:

Extra Features

 * Greetings: You can create a welcome message at the top of your wall by adding content to the page Message_Wall_Greeting: (example: is the greeting for  wall.)

From: http://community.wikia.com/wiki/Help:Message_Wall