I have emailed the Satoshi Nakamoto Institute but have not heard back from them. Sergio Demian Lerner mentions the first version of the whitepaper on his blog but I have been unable to get him to send me a copy.
Someone says that a copy is in the blockchain - https://blockexplorer.com/tx/54e48e5f5c656b26c3bca14a8c95aa583d07ebe84dde3b7dd4a78f4e4186e713
http://www.righto.com/2014/02/ascii-bernanke-wikileaks-photographs.html - Scroll Down
Who knows if its the one which is available currently also.
This is pretty interesting: https://bitslog.wordpress.com/2014/06/19/how-you-will-not-uncover-satoshi/