Real quick I want to clarify a couple things for anyone else reading this thread. The items listed above are not part of the Car Demon PlugIn itself. The features being discussed are available in add-on PlugIns and Themes we are currently beta testing before commercial/public release.
Now back to the questions.
1. This is occurring due to an error I made to the most recent update of the Front Page PlugIn. The next version will resolve this. Estimated release date is middle of next week.
2. This is a style issue in the most recent version of the Car Demon Theme, which will also be fixed in the next release.
3. You're the second person to report this particular issue. I have not tracked down the cause at this time, but I know it is only occurring on some installs. I can't offer a firm timeline on when it will be resolved, but I can tell you it is high on the list. Would you mind sending a link to the site you're working on so I can look at it? It may help me debug the problem and get it resolved a little faster.
4. Currently there is not an option to do this with the Car Demon Theme, both of those items were tied together. I have made a note to separate them in the next version so you can choose the color for each independently.
If at all possible I'll speed those timelines up, but realistically I think we're looking at next week.