Some stats may be wrong as I've played several games, and when the game updates players' career stats I'm not sure whether it stores them in USER or USERSTAT.dat.
Equally the file may or may not change your game progress and unlocks - if it does, I've unlocked the English stadiums through completing tutorials (that means no Lords/The Oval which require you to win the ashes), and several other stadiums from completing matches.
You should also check your graphics, sound and controller settings as they may be different too.
None of this should change. Career stats are in the user.dat, unlocks are in usrstat.dat, graphics settings are in the pot file. Not sure about sound and controllers but doesn't change on mine.