This is the first screen you should see when you run the
tournament games software.
Next to the yellow arrow marked "1" on the image to the left,
you will find the "Login / Signup" links. If you have not signed
up yet click on "Signup" and follow the instructions, if you
have already done this just click on "Login" and you will be
prompted to enter your username and password.
After you have logged in, you will see this screen. Next to
arrow 1, you will see the list of available DirectX games, just click on
one and then you will notice that the button next to arrow 2 will light
up. You can then click the "Play" button to continue.
Now you should be at the tournament selection screen, arrow
one is above one of the tournaments available. Just find the tournament
you want to enter and click it, after you click you will notice the play
button (arrow 2) light up. At this point you can click the play button
once more to launch the game, and you're off!