My bad. I went by "Version 12 BS update for OsC 2.3.1 Bootstrap+" Thanking that because I was using BS and it said "update". The other part that confused me was that I saw "upgrade", but no reference to BS.
This time I went and took a chance on the "upgrade" installed it. No errors. Seems to be working.
1 Question, do I need to install standard thumbnailing product page images? If so what does it bring to the table? I did not install it on the first go around.
Thanks for your help,