you do realize that if you want to watch the cutscenes, all you need is the Bink! Video player. just download it from
www.radgametools.com), and open the movie you want to see from the "Movies" folder. :)
if you really want do unlock the movies, simply transfer the old swkotor.ini (or swkotor2.ini for tsl) to the swkotor directory, where-ever that may be.
hope that helps. :)