David in Avenel
Well it downloaded fine for me and I extracted it to .... somewhere but not obvious. Now according to the instructions I need to install DBSearch (supplied) which I did and then the insts to explore the data base are given but try as I might I could not find anything. In the past I re call that the NSW Track & Signal Diagrams used this search engine and at that time I found it to be treble dutch and confusing, consequently DVD of diagrams chucked in drawer and forgotten.
What a thoroughly confusing situation.
and best wishes,