I found an email from USCutter late this morning, letting me know that my Scanvec Amiable software was on backorder.
So yes, not having found the brand of software that I was hoping for, and only a sheet of paper with an address on it for signcut and only a couple of lines of vague information,
I indeed thought that I had bought a "pig in a poke". I appreciate the patience of members like mb20music who understood there could be details that I was unaware of.