I'm trying to start planning my next layout in HO scale somewhere into the distant future and have seen this program(?) mentioned several times and everyone says the price is great which leads me to believe it must be free, but where do I get it? Also I got a book called 18 tailor-made model railroad track plans by John Armstrong. I'm trying to get a handle on the nomenclature in the book and how the trackplans relates to the schematic and profile, I don't get how a runaround layout looks in this format. It would appear that I need some expert guidance.