First of all I would like to request that you refrain from writing such demanding post topics, you are getting free support for a free product so posting in this tone is more likely to have the opposite effect of what you want.
1. Currently no plans.
2. One day I would like to have CB support but it is not a priority.
3. It is number 3 on my list behind the soon to be release 2.0.7 (bug fixes) and Joomla 1.5 native compatibility. Sorry but I do not have time to tell your freelancer how to implement the PHP changes, he would have to figure it out.
4. At the moment all you can do is create a Graphics title for the category, when the feature is implemented you can tick a box to make it ratable.
Sorry that those answers are not quite what you wanted to hear