Start the program up and create an account.
Click on a shape a like Triangle, which would be located at the bottom right of the program.
"Join An Existing Network"
Locate the JTP folder on your computer, where the game application is, you should find a "Joey_pc.exe".
Start the game up and click on "Duel", down to "2P Duel" and then pick your deck.
(From your own PC option)
Host - If you going to Host a match
Guest - If you joining a match