Ok first forget using USB adaptor they wont work. Also forget using laptop they need special motion control board to work properly.

You need to use a PC with parallel port and plug directly into it. . . . . Don't try doing anything else until you have changed it just won't work.

Other than showing wrong cable this the video is pretty much useless has it's blurry and your moving around too much. Concentrate on showing the control box internals and pan slowly and hold still then same with motors slowly pan around the wires.
Better would be good quality pictures from multiple angles.

Can't help without better information or clearer pictures/video.