The shows ("coronation ceremony" alternating with "storytelling") do not necessarily occur every day--during less busy times, the shows may only run on the weekends.
The Princess meet and greet at the Fantasy Faire is open daily, I think usually from an hour or so after park opening (sometimes AT park opening) to about 6 PM. You wait in line and get to meet 3 or occasionally 2 princesses. I have heard if you want to meet princesses, you can also try walking the side paths around the castle during the middle of the day and you might stumble across one with less of a wait. But I went when the parks weren't HORRIBLY crowded and it appears the jig might be up on that one...at least, the one or two times I saw a princess in the area, they had pretty long lines (which may have been cut off by the time I saw them). But it's certainly worth a shot.