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power supplys

How to connect two power supplys on picaxe board (so confused)

Ok, I'm more programmer than electronics wiz, and my day's of reading schematics have long since passed me by. So, does anyone have a good diagram (picture) on how to wire in a second power supply to a picaxe 28x1 board? I work good with pictures then I can de-construct it to a schematic and get a good grasp on things.