Hopefully these answers might be able to help you:
Re: question 1 - if I remember correctly the image sets for color schemes other than the default were "incomplete". You could simply set your template as the "default_grey" and leave the image set as "default" and that should eliminate the problem.
Re: question 2 - that is the "default_ex" template which comes standard with v1.0.5, though I believe it can be downloaded separately for v1.0.4. A quick look in the downloads section could probably turn up fruitful results for you.
Re: question 3 - not too sure about this one, but you might want to check out the Feature Requests forum and see if it's been brought up - if not, post a request of your own and see if it's something the devs are willing/planning to include in their next few releases.
Don't know how much of a help these answers have been for you, but it's a start.
