node.js (socket.io) downloaded example

I downloaded code from this site http://rawkes.com/articles/creating-a-real-time-multiplayer-game-with-websockets-and-node.html (https://github.com/robhawkes/mozilla-festival) yesterday.

But if I open localhost:8000 it just writes "Welcome to socket.io." and nothing else, but it should create new player and more things... I am beginer in this so I cant find any problem..but it looks this function is not starting function onSocketConnection(client) {}