I updated my OsCommerce shop to 2.3.3.4:
- I replaced all files with the new default files from the package.
- I Updated the old database with the script here: https://stackoverflow.com/a/19806818/1069083
- Compared an sql-dump of the old database with the dump of an empty new database, It looked all OK.
Now the new version works with all products in it, but although I activated the "Categories" box in the admin interface it is not shown on the left.
Did I forget a Detail?