Ruben, I really do appreciate all your help.

> And I am not clear on what you mean by old garbage.
Oh... not within UBB Threads. Just unnecessary html files. I run two webcams out of my site, plus have a few other pages, etc. Junk accumulates.

> then you won't get it right because you need to use the upgrade script.
Then backing up a step or two... it sounds like I should

1. On the new site
    A. Remove all the Threads 7.5.6 files and directories.
    B. Use phpMyAdmin to drop the entire database, then create a new, empty database.

2. On the old site, backup the Threads installation (directories and files), and Restore/install them on the new site -- effectively bringing across my old Threads 7.5.3 environment.

3. On the old site, run the UBB Backup Tables, download them, and then use phpMyAdmin on the new site to run those scripts to create and populate the tables. (Or is there a better way?)

4. After all is working on the new site, THEN upgrade Threads to 7.5.6

Thanks again for all the help!