One of the designers did say in an interview that they sent new versions overseas and did not ship to the states because they did not have enough ram to go with the pubs. In between sending out pub cards and ram overseas Williams announced closing. The development documents were not finished and the software was lost in time probably left only on the development pc. I now own 1.2, 1.6, 1.8 and just bought 1.9 pub from this fantastic gentleman. I also have Star Wars 1.2 and 1.5.
I will make these available for free use to anyone who shares their at the annual Allentown pinfest!
Thank you Knazzo!