juice

So I was getting my girl out of storage and putting the battery back in etc. While doing this and talking to my Dad I proceed to hook the ground wire for the Juice box to the POSITIVE side of the battery. Needless to say I now have an engine full of fuel and a trip to the shop tomorrow I guess...

So I ordered the juice box pro with my tbr exhaust since everyone recommends it. But how do I get maps for it? I'm completely new to this. What do the maps do? And do they come pre loaded? Or what's up? Also BLOCK OFF PLATES... for popping... Can I install that on a later date or same time I...