Don,
I am one of the 50 that bought the "official" version. I still have the manual and the diskette. As to whether the disk is still good or not will be answered in about a week. I just bought a 1050 drive (old one died) and should have it by next week and we'll see if the disk is still viable. Twenty years is a long time, but it's been in a dark closet.
Both games were great.
Phil Snider aka SwampRat