He had the RX14 (no alum heatsink, plugs for everything) and now he has the RX13 (alum heatsink).

Basically you need to snip your plugs off for the motors, solder them to the right places. I'd help but all my S&S boards are RX14 - seems US/Canada (when ordering spare boards from MATO) get RX13's whereas the rest of the world (that ship from China) usually get RX14 (the newer, better board)