I've found this info on the Hipo, doesn't seem to match what's shown in this thread.
http://homepage.ntlworld.com/adam.bozon/hippo.htm
http://homepage.ntlworld.com/adam.bozon/openings.htm
http://homepage.ntlworld.com/adam.bozon/hippo_games.htm
http://www.chessville.com/instruction/Openings/Martin/Jan04a.htm