BobW2008 wrote:I am assuming I screwed up by deleting the data and that removed any history of the previously [SOLVED] topics.
That's correct. Deleting the data removes all of the new database columns that the extension added during installation, which includes the information about which posts have solved which topics, and which topics have been marked as solved.
There's no way to restore this unless you have been maintaining backups of your own forums.
Locking topics is a core phpBB feature though, so that action is persistent with your forums.