I've updated it. you can read about it here.
I’ve to advice that if you are going to try to do this, Windows 8 on SUR40 is totally unsupported, and there is an high risk that you will fail and the result will be a broken SUR40 so if you decide to do it you will to at your own risk, my advice is not to try it, I did it only for testing purpose
hth Gian Paolo