I had the same problem the first night on the 64-bit version, but tried again on the 2nd build he uploaded today, and was able to see the character in the character creator, enter the game, fight a couple of "npcs," level up to level 5, aquire 2 new powers, and fly (somewhat).... Not bad for a "pre-alpha" game created by volunteers!
Nice job, guys... I look forward to seeing the many, many improvements that I am sure will come in the near (and far) future...