"How do I get configuration settings that make the Outlook Fields the same as the Column headings in Access without any error messages?"
The templates are only used to Import/Export configuration. You must configure mappings to your table in the Assign Table Dialog, Please watch this video, it is about mail folder sync, but the idea is exact the same:
https://youtu.be/NAkxO_8vUIc
"How do I click on Ok afterwards without the primary key error message? (i.e. how do I make it work?)"
You must provide a SQL Statement for Primary Key value retrieval in Mandatory Keys dialog, if you will sync only in one direction DB->Outlook, you can ignore the warning
"Will I need to buy the Multi-user license before I can test a public folder? Or is testing unnecessary because the procedure for syncing between Access and a Public folder is exactly the same?"
http://www.geniusconnect...les/GeniusConnect/2/3/4/