1) If you log to a game room and it states there is a java update that needs to be installed, please follow the directions it gives you.
There is a link the message provides to the java download page. Follow the directions it gives.
2) You must restart your computer after installing the update.
3) Come back to the website and log to a game room. You may get a pop-up that asks if you want to run the application. Click "yes". Now you should be able to access the game room.