This suggests that the upgrade did not complete successfully. When the upgrade fails, you should either see a confirmation message, or an error.
If you’re using the web-based upgrade tool, it’s possible that the upgrade process wasn’t allowed to complete because of server time limits; if that’s the case, the command-line upgrade tool might be a better choice.
To re-run the upgrade, you’ll have to restore your installtation from backup (including the files directory) and try again.
Regards,
Alec Smecher
Public Knowledge Project Team