Looking around the game page, it looks as though the game should have Mouse Controls, but it doesn't seem to. I downloaded the KBM Alpha version, which is the one I was sent to after buying the game. Did I download the wrong version, or are there actually not keyboard/mouse controls?

I have the same problem 

1 disables controlling a hand, 2 and 3 control a hand (left or right) 5 resets the position of your hands and 4 resets your position, mouse, clicking and scrolling control your hands, right clicking and holding will make your grab and carry objects and right click selects option in the commands menu.