I personally have never played POP2, so I could not tell you. Perhaps someone else who has played it could. You could try exploring the folder yourself, just make sure to not delete, move, or alter any files, or else your game may not work. Look for files with sav or sv in the extension, or "save file" in the description. I don't know how POP works, but if you can name files, search for a file with that name. If it saves by numbered files, search for those numbers in the POP folder.