Wiring question.

[Chevypower292]

Alright, I've been working on my '70 Truck...Well I've got a question about the wiring...
The Alt on it is the wrong one, (new stlye)....well I'll show you how its hooked up... As you can see in the picture its barely even hooked up, its hooked to where it only charges the battery nothing else, well I got to looking and found the orignal wiring harness for the old style Alt and its got the wrong plug on it...I need to hook up my newer style Alt to the orignal wiring harness for the old style Alt...What I need to know is how to hook up my harness to it..The plugs are different..I need to know which wire goes where. (On the plugs)



The Alt is hooked up to where it charges the battery and nothing else gets power from it.. (Its rigged up)


This is the orignal wiring harness for the Alt..As you can see I have a Blue wire and Tan wire going to the plug on the harness. I need to change the plugs out so my orignal wiring will fit the newer Alt.

EDIT: Both pictures are clickable for better viewing.