pc ballast wiring

ok so i have a pfo box for my 2 96 watt pc it went out so i open it up looks like prier owner rewired it to run off one ballast and took the other out? ballast has no info on it. i have anther box from custom sea life with 2 work horse 5 ballast in it. each one will run 1 96 watt bulb i plan to just put the 2 new ballast in my pfo box. problem is im unclear on the wiring a little. i got this wiring diagram off the web site http://www.fulham.com/Find_Process.php it show just connecting 3 red and the one yellow. what confuses me is the way it is wired now and way my old one is wired, not that it is done right lucky it didnt catch fire. my pfo connections from the lights are 2 red and 2 yellow. the new ballast are wired to a white, yellow, red, green, my connection to the light is white, yellow, red, blue. the new one i am getting the ballast from only use 2 reds and not three like the wire diagram shows?

does it not matter what pin on the bulb it connect to ?
 
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