ardumoto and other pins

I am looking at using the ardumoto breakout board to control 1 motor. I also have 2 buttons 2 lights and serial rfid I need to connect into it. The board has some room to add my resistors and connect it up but I am not sure how to connect to the header pins since it does not have female headers like the protoshield. Should I just solder to the top of the pins or is this board not designed to use the other pins. I could use a proto shield but I like the convenience of already having a motor controller soldered in.

Thanks,

Eric