After a few gyrations, I just got Steam working 
Now I need to examine my design a little closer and see how the online profiles match my local versions. There are various statistics that are part of my game that, which, according to what I read, isn’t doable on the Steam system. Of course, I’ve only had a cursory view/read of the documentation. . .but now that I’m actually attaching to their system I can start to flush out the details.