I will add myself to the list of old thread revive offenders. Those pictures from the original post are no longer available.
First and foremost, I am trying to find out if I can use that J30 retrofit kit OEM# 22020-97e25 for my R32 GTR?
If so, this is what I can understand from the writing. The process essentially is to de-pin the stock RB 6-pin onto the new 7-pin with middle slot left blank for ground. Then de-pin stock RB 7-pin onto the new 6-pin with leftover ground extended and pinned into the middle slot of the new 7-pin from the other side.