ZorgNeo: Well the herbwoman was no help. No potion of life there.
The problem is that the potion of life isn't really called this. It has some other name (that I don't remember at the moment) and is a mix potion (iirc health+constitution).
ZorgNeo: The more important question was about the cemetery. The western tomb with the 3 switches
http://img208.imageshack.us/img208/4863/inquisitor2012110621060.jpg Not my screenshot, but i can't open those 2 locked off parts, but i found the secret room.
I'm pretty sure that you missed a lever if some of the doors refuse to open. The same thing happenened to me too several times. Best thing is to walk through the whole dungeon again and check if you pulled every single lever (and of course if you found every secret room).
ZorgNeo: And the locked church with the 4 fountaints around it above cursed Joan. How do I open it?
The church won't open before the main quest reaches a certain point (near the very end of the game).