HazardsMind:
Did you install pull down resistors on the buttons? Do a search for "pull down resistor", and to use them with buttons.Added: Wait, did you put one the receive code a way to turn off the second relay? Another thing, does the serial monitor put out "Backwards"?
No I don't think I did and Yes it does just print out "Backwards" on the serial monitor, BUT every now-and-then I will see "stop".