They're a piece of p**s mate.
The only thing you need to know is to put a wheel in and out you must have the QR not in the wheel at all.
I have one on my Avalanche but no batteries for my camera. (Stupid DSLR)
You put that onto your frame like that and tighten the screws. Depending on dropout thickness the Silver plate may bend in a little. Put the QR through the little hole then bolt up. (Keeping the spring with the piece you screw on. Not between the wheel and A2Z)
I'm not sure how to do it with a bolt through though.
I'd like to advise you too that you shouldn't use another adaptor with the A2Z as the A2Z may move it's self a little from time to time.