@mikejtim, as far as I know what proflightsim sells is an outdated version of flightgear, so you better get the newest one (free, for sure ) from flightgear.org
When I wanted to get back into flight simulation a few weeks ago (out of the hobby for over a decade, MSFS 2999 or 2992 is where I left off) I looked around for what was available and saw this fantastic "new" flight simulator. So I googled it, to learn more about it. And it didn't take much to learn that it was old version of FG. So I went for the real thing. But many have probably been taken in by this scam.