Ron,
This is very helpful. You have given me a path to "salvation". So, first of all, the original database is no longer available. I'll have to follow your instructions to "1. Zip up the contents of each separate project folder and import as though you had exported those projects.
Rename preview.xml to template.xml and then zip up the contents not the parent folder."
I had tried to import the old saved projects by zipping the entire folder but that failed to work. I'll try to follow your instructions.
Thanks.