1. I just deleted the js
directory and reuploaded it from 5.21. I also reuploaded pp-inc.php. These actions didn't made it possible to insert text in the description field, but it works fine when I switch to basic under the admin options, so itīs all good now!
2. I havn't managed to fix the issue with the MySQL errors on the main forum gusty.se/forum/index.php, but Iīll look into it.
I just fixed so that you login to the PP admin with the username "Chuck" and password "vbulletin". Perhaps can you take a quick look to see if there are any incorrect classifieds table prefix filled out under admin edit integration.
Thanks again for your help!