To register for a tournament, click on the Register Now button within the Table Information window. Alternatively, you may double-click on the Tournament Name within the Tournament List :

When you click on the Register Now button, you will be asked you to confirm your request :

If you are registered in a tournament a check mark will appear to the left hand side of the tournament name. In the example below, the player is registered for the Texas Hold'em tournament named Tournament 40 :

Players may be registered in a maximum of two different tournaments concurrently.

Unregistering From A Tournament

A tournament will not start until all seats at the table are filled.

You may unregister for a tournament by clicking on the Unregister button in the bottom right of the Table Information Window :

You may not unregister from a tournament once the tournament has started.