Quote Originally Posted by CaroleAs View Post
Checking the instructions to upgrade from 1.4.0 to 2.2.1, I need to uninstall it first, and it says to "delete the files that were copied to your Zen Cart installation's file-system. Then, use your admin's Tools->Run SQL Patches to run the file....."

How do I know which files to delete before running the SQL patches?

After I reinstall it, will I have to redo the French translation?
Since I'm unclear as to the site's original ZC version and current ZC version, I can't confirm whether you need to uninstall first or simply overwrite and/or merge changes.