That is the exact same controller I got with mine. From the corner of the router in the picture it looks like the exact same machine I got.
I hate to sound the way I am going to sound, but man, the electronics suck. I did get mine to run, but it was not great. I have seen alot of issues with the quality of wire they used on these. Sources of many issues.
Putting a G540 and new motors, or possibly using the stock motors will make a HUGE difference. I used a little better setup then the G540 because I had it already.
Where are you located? In the US? Does the mill computer have/or can it have internet access? I could use team viewer to log into it and check a few things. The setup is very straight forward on these, but if you are not getting mach3 to output, then its a mute point. The mill computer, is it 32 bit windows? Are you using the on board printer port? Add in PCI card? USB pulse generator?