No, I also detected a few different between the live version and the score myself!
But who cares... If the composer says it's ok, then it's ok! As a composer I always feel inclined to make small changes to my scores when I perform them, so I guess firefinch feels the same.
Now, I will repeat what Steve said: Little?!?!? simple?!?!? HA! I laugh at such words when it comes to this work!
It's lovely... just that.
Perhaps you could make the score into a PDF for others to download print and play? Just an idea...