Last mod is very cool.
The only thing I don't like is that the program overwrites logs entries, I love to generate a report in the middle of the patrol, so the data is more usefull, perhaps a solution is to scan the log for the first entry of a sunk ship :
"EntryText=Ship sunk!...."
and renumber the following entries, something similar with the map file, preload the file, insert the lines you need at the begining, so we don't lose our previous markings and waypoints.
Perhaps you have already tried and is not possible, but asking is free... :P