A simple way to explain the blue pill wiring is this:
Pull the plugs out of the front panel and look at them end on (ie wires running away from you) with the flat side of the plug uppermost. Starting from the left side, connect each hole of the 8-pin plug to the following pins on the blue pill: B15, B14, B13, B12, B11, A1, G, A0. Doing the same for the 4-pin plug: A3, A2, G, 5v. The two jumpers on the BP should both be in the 0 position.
This "should" work for any variant of the blue pill board, assuming they are all electrically the same!