QUOTE(KenH @ Sep 7 2006, 06:48 PM)
1) Should the brighten/darken/clone tools work in Projection Mode? They don't for me.
In projection paint mode, you're painting on kind of transparent canvas in front of the model. In order to be able to use tools such as clone, darken, etc..., you should use the option 'Get Surface Color' to bring the color of the model to this canvas (it 'unprojects' the texture from the model to the projection canvas). You won't see any immediate change, but when you start using the paint tools, they will now be able to manipulate the existing texture on the model.
This option is also described on page 22 of the manual.