Ok, so I took the latest sources from Github and did another upgrade.
Unfortunately the upgrade script for SMF got stuck at the step: Executing: "Updating legacy attachments..." (2 of 41)
I did not manage to get that upgrade script to finish, so I took the working upgarde script from the published update and ran that. This finished without problems.
The resulting forum works ok (although the board index does not look ' clean' but I assume that is work in progress)
I have installed Tinyportal 2.0 without problems It is now up and running. Will have to redo some css tricks I used in the articles for it to look OK, but that is my problem.
The error we idscussed earlier seems to be gone, but I do have some other observations for you guys:
1. Errros still showup in log: 8: Undefined index: 5
Lines: 970, 982, 999, 1021
These errors are thrown in every time I klik on Edit in an article. It has something to do with a block typ? ( echo $types[$block['var4']]['code_bottom']; )
2. I am missing the 'read more' link in the articles that use the introtext
Will be setting up the rest of TP and let you knwo what else I find...