Thank you DTLow! Worked like a charm - and I have no local notebooks so no problem with that. Looks like everything is there. FYI: I found edits I made via the web after the upgrade date would appear in the Desktop App... but none of the old Notes ever showed up (until your solution).
I just upgraded and after the restart of Evernote 6.8 - all notes/notebooks are gone, rather don't appear (still there when I go to the Web) - refresh sync doesn't help. I've logged out and back in, restarted Evernote... no joy. I'm on the free version and this is on 1 of the 2 devices I'm permitted with the free version. Any ideas?