Create backup copies of all the files in the "/Stats/Rom" folder. Now copy the files from your season's folder that is located in the "/Stats/Saves" folder over the ones in the "Rom/Season2000" folder. You must do these things after getting into the game, or it will will crash when you get into it. If you used the player editor to make your player's HR # be in the hundreds or even thousands, get ready to see some long homeruns.