[NTG-context] basic formatting in ConTeXt

I am new to ConTeXt and have what are doubtless some very basic questions. I have checked the manuals and the archives of this list and of the TeX on Mac OS X list the, but have not found what I am looking for yet. What I need is (a) to set up the footers and headers in a book so that there is only a footer on the first page and only a header on subsequent pages, (b) to define the first page number (c) to set the color of a page in its entirety. Any pointers to documents, solutions, or worked examples in ConTeXt will be very much appreciated. I have some idea of how to do these things in Plain TeX, but should really like to migrate to ConTeXt. Alan