I'm in chapter 11 (side quest 18).

Just a note to save you some time. If you go down one of the routes off the main open area and have to fight Vanilles summon thingy....you need to turn back and carry on with the side quests.
Also, at the entrance of that passage are 2 big fighting monsters. Spam them with Com/Rav/Rav for easy kill and 6600 points. Walk up the hill to the save point, walk back down and they re-appear. I did this for 2 hours and got every char fully ranked to 4 in each of the 3 standard skills, plus around 400,000 cp points to spend on each when i know what to do with them.


Some of the quest giving stones are hard to find so I found a good site.
http://twobrothersandasister.com/?p=6455

I think you can go back to these after the story has ended, so maybe you arn't supposed to finish all of them on the way through.