Boss 5 retrofitting project

My Gecko 201's arrived yesterday and I've gotten the old control
cabinet off. I ordered the DeskCNC softare/hardware. I plan to
reuse the original power supply, but after a good look inside, I
think I need some help. Where do I wire in to get my power for the
geckos? I'm going to cross my fingers and hope I have better luck
with the motors than Keith had, if I don't I'll probably change the
motors too. If anybody is interested in the old control just let me
know. I have 2 sets of circuit boards for it too , but I think most
of them are fried. Hence the retrofit.

Thanks
Nathan