Thanks Trekster, I think I have it figured out now. How did you determine where to land the wires on the rainbow? It looks like you omitted the cat 5 connectors and went straight to he board - what do I connect to what?
So would it be possible to power this board w/ 24 volts without damage? A friend of mine picked up some LED's from an old grocery store cooler and I think they can be used in a display but they need 24 volt power.
The heatsink that fjaust mentions is included in the kit.