Hi,
there are any number of posts on this forum about those boards, also called RnR and who knows how
many other names, they do work but they are a headache at best.
Are you that attached to it or would you consider buying a decent European or US made board, like an
Ethernet SmoothStepper or a UC300? They work as advertised and the manufacturer WILL support you to get it working.
Both these manufacturers (Warp9TD and CNCdrive) have their own dedicated forums to support their products.
Craig