I probably cannot help you much, as I don't have one of those boards handy.
But, the connections should be color coded and the diagram should be silkscreen in white below the pins. Note that the power switch, reset switch and speaker connectors can be installed without worrying about the polarity. The LED jumpers, however, must be installed with the correct polarity. This usually means that the (+) pin is connected to the non-black connector.
the power switch wire is usually red, the speaker is an area on the board that is 4 pins wide.
Sorry I can't help you more than that.