Kind of late since the hardware fix has been identified, but nonetheless...
What are you referring to as 'functional pins'?
Pin 2 is the hall effect sensor. Pin 4, 5, and 6 are for the red, green, and blue LEDs. They are pins D2, D4, D5, and D6..
Here's a quick Fritzing schematic. I couldn't find the symbol for the hall effect sensor, but there is power, ground, and data out.
