Location of Custom Data I added to the pages of under Define Pages Editor

[gws76]

I just did an upgrade to latest version of Zen Cart and none of my personalized content is on the pages that in past were edited via the Define Pages Editor; such as, Checkout Success Page, Conditions of Use, Contact Us, Main Page, Shipping & Returns, Page 2, Page 3, etc.

Where would I find this on a backed up version of site?

[mc12345678]

When you are in the define pages editor section, you should see a path at the top of the editor indicating where the file is expected to be for the current site. In following best practices of working with software, the current site being edited should be a demonstration location where you can make errors and not affect your business. That would mean you could also access your live site and readily see the information desired.

That said, the default location (which gets overwritten by using the updated software) is: includes/languages/YOUR_LANGUAGE/html_includes. YOUR_LANGUAGE in a default install would be english.
But, if again using good practices, changes to files in that folder should be made in the folder off of that path associated with your template.

More help may be possible if the method of upgrade is better described.