I did not find most of the items listed in the wiki reference above, but that's because the 1.x install ran correctly.
Problem resolved - and it was my issue, no fault of StableBit
I run the OS on a small SSD drive.....so I had pointed all my "temp" variables to a directory on the Pool Drive.... so when I uninstalled, all the temp directories were gone (duh!). So the install, and anything else looking to write to a temp folder failed. The 2.x install didn't give any kind of failure message, but an attempt to open a web page on the server did, which was the giveaway.
I repointed the temp directories and the install ran perfectly, and I'm up and running.
And thank you for the pointer to the wiki, I'll now know where to find it.
Mark this one "solved".
Thanks!