I wouldn't call you a liar Howard, the world isn't so black and white that people can believe in their opinion but maybe be misguided or wrong (and I mean this vice versa so don't go there!).
So what table are you trying to run?
As for any version thing, I guess it's how we look at it. To go back to the Nintendo analogy, a NES and a SNES aren't compatible with each other. With VPX, they gave it its own file extension in part to help support this understanding that it's a standalone product, detached from previous versions. I appreciate your point though, maybe it would have been better if they'd called it "Virtual Pinball" instead of "Visual Pinball" but if you read up on the various VP forums, there's not too many people that get this confused. VPX is it's own thing, done we've moved on. I do agree though, I wish they had just incorporated full backwards compatibility, it would be a better solution if it did and NO ONE is stating otherwise, we're just saying understanding this, most of us seem to be able to get things going. I think they didn't simply because the project scope didn't allow it and some of the differences between the branches, especially between VP9, physmod and VPX just couldn't support it easily. Maybe it's a bad decision but when you do this for free and only a couple of devs, you do what you can. Decisions has worked well for us anyway and every week, we see more and more people getting into the pincab thing, so at least some are happy.
If people care enough, I could point the devs to this post and see if they want to respond but then again, their ware is being described as a possible shoddy piece of crap so maybe it's best I don't LOL