I'd love to find out that I've got the wires wrong and a simple rewire will get everything up and running, though I'm sceptical. I've put a couple of images up here and here.
The casing on the pixels has a rough finish, so it's hard to make out what's written even with the right lighting and on the easiest-to-see pixel (as in the photo), though I think I can make out +5 (red), CD or CO (white), DC (green, really not sure on this one) and GND (blue).
As you can see in the first image, two of the wires are broken out - the grey one is connected to the blue one on the socket, and what I think is GND on the pixel, the red one just goes straight to wherever the red wires are attached on the pixels: +5V I think.
So, have I just got it all wrong, d'ya reckon?