70 chevy c-10 wih wiring problems ?'s

[afoshie]

I have a 70 chevy 1/2 ton, we got it about a week ago and the previous owner had gobbed up the wiring on it. I took all wiring off the truck and cleaned it up. my question is with the instrument panel on it. when i turn on my ignition my temp gauge pegs to the cold side hard, also on the switch has 7 points for connection. the double point that the red battery wire connects to the one is for the battery continuous hot. the other ? and the other that takes two brown wires the other ? if someone could help me out with one and tell me colors pictures anything to help get it running right.