Reply to Mapping instant-grat. To diff. Controller help please?

Hey, so I have a Alesis X49 Midi controller, and it has 4 drumpads. I downloaded the midifighter instant gratification mapping, and i am wondering HOW do i map the Beatmash1, 2, 3, 4 and the super combo to my 4 pads? I have tried for hours and idk how to do it! thanks!