Thanks so much to DivaVocals and southernlady for your suggestions. They appear two-fold, so I just want to verify I've "got it" before I continue.

I have always thought of the files on my computer as a backup, but needless to say (dah!) , when you make changes it isn't a backup at all!

The server has a separate folder I hadn't used, so I will use that as a test store, and upload the most current version of ZC in that folder and use the database backup so hopefully, I will end up with an actual test site.

On my live site, I need to delete all the IH files and folders that were uploaded and reinstall the latest version of IH 2.

Before I begin, do I have the correct order?

Thanks sooo much!
Sandy