Update: My TB78-TB91 upgrade was messed up pretty thoroughly by having the "enable/disable online prompt" setting set to '''enable''' which caused plugins to partially load but be non-functional. One of those plugins was CardBook which can be configured to manage "collected addresses" On a second machine that had an identical profile, I disabled the "enable/disable online prompt" setting and did the upgrade and I did not lose my "collected addresses" I also determined that the CardBook configuration was diverting "collected addresses" to CardBook so once I was able to get CardBook to function correctly, I was able to access my prior set of "collected addresses".