Hi! I gleaned a lot of information my searching in the forum and solved my problem in two steps.
1. I unchecked "Enable transmission of last QSO" in the "Last QSO API" section under Logging. This eliminated the duplicate log entry that was missing information.
2. I added my QRZ.com XML lookup information under "Web Services - Online XML Callbooks" and now my logging function populates the name, etc. from QRZ.