UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support server crash, ubb copied in from tar file, doesnt work?

The instructs say:

   Set up the UBB.classic on the server.  Use the UBB.classic zip file that you used to first install the software.  Do not use the script files that you downloaded in the backup operation.

A few weeks ago I upgraded from 6.x to the latest install with the upgrade version install. So do I need to DL the full install version and upload that to the proper directory?