Hey SD,
You just need to run a two conductor wire from the resistors.
For example I have my resistors running in parallel, hooked up with 18 gauge two conductor wire. Each wire connects to TWO of the four pins. if If you are looking at the board from the side - left two pins ground/V- and the right two are 12v/V+.
The bottom of the board is silk screened with what the pins are.
http://reprap.org/mediawiki/images/8/83 ... bottom.jpg