Assigning Pads in MainStage AKAI MPD18

Hey all, I'd consider myself a new but fairly competent user of Logic and not completely computer illiterate, but I've been playing around for about an hour now and I can't seem to find a forum or google result which is working for me.

In short: I want to fix the incorrect assignment of the pads (1 through 16) to the correct order.

The details:
I've recently been tasked with playing drums and some samples on an AKAI MPD18 using MainStage. I presumed it would be similar to my Nord Electro setup wise, plug it in and pick a patch essentially. However, Whilst the pads are recognised and all appear to work, The order is all jumbled up and the bottom left pad doesn't seem to make a sound unless I switch the unit to "Bank" B or C. I've been mainly focusing on the "assignments and mapping" screen but the buttons don't seem to do much (Assign and map in the toolbar just takes me to a redundant window which doesn't let me assign or map anything relevant, only some niche settings).

I've downloaded the AKAI software for mac which offers these patch options:

Pgm03-Prog01-48

Pgm04-Prog49-96

Pgm02-GM_MPC

Pgm01-Chromatic
[and all the different major scales]

I'm using the first preset so far to no avail. MainStage 3 on a Macbook Pro with OSX Mavericks. If I've missed any details please don't hesitate to ask and ill try to fill int the gaps! Thanks in advance everyone!