I just added this about the jumped resistor after taking a good look at it in the picture
The jumped resistor looks like a paralleled capacitor and resistor which is a method of time delay signal, I'm not quit sure what it would be used for, it also looks like it is something that was added as normally they would be paralleled in the board. It is possible that the board has been modified for a specific application and no longer functions as originally intended. If tha is the case you will probaly need to find another board. Watch craigs for a free treadmill, I have 4 sets of motors on my tools and haven't paid for any of them.
Art B