First: Welcome to the Forum!
It's too late now...
But for next year: pictures, diagrams, and cables that are marked will keep this from happening to you again.
(And you're certainly not the first to have this happen...)
If it can help: here's what the battery compartment in my Outlaw looked like. I would have to guess that they are similar...
You've got hot leads at both ends, grounds at both ends, and two cables that connect the batteries together.