The InTune is easier to use than the Trinity. When you plug the tuner into the computer, let it boot up until it is on the main menu. Then the pop up will come up asking you if you want to open folders to view files. Click no because you don't need anything in there right now.
Then go into My Computer and open the Diablo Drive. Inside that drive, you will see an InTune file. Open that file, and it will automatically start loading the update.
If that doesn't work, then just take it to a shop that installs these everyday, and they can do it for you in just a few minutes.