I would like to send out a suggestion to all PBEM opponents.
If you plan on playing any scenario from a JTS or HPS title and record it on the Blitz Black Powder Ladder, it is highly suggested that you take notice of the scenario file number that you will be playing and include it in one of your game emails or make a note of it. Many of the scenarios share the same scenario name, number of turns, date, etc., and the only noticeable difference in the scenario is the file number. If you do this, you should never have any problem trying to determine which scenario to properly record your game as.
Below is an example of where to locate the scenario file numbers.