To clarify - Nov 15 2009 says a head covering is required - the previous QFRs said it wasn't. I don't have the WT to hand to quote verbatim. (If you want to hear it , you can download it at JW.org).
A helpful picture is included of a sister interpreting wearing a head scarf. (At least the burkah isn't compulsory yet in JW land , though I am sure some of the GB are working towards it.)
What I particularly found amusing was the reference within the article quoting how the instruction was wise. The WTS seems constantly to need to say how wise , clever & discreet & wonderful they are. On this occasion , they even did away with the false 3rd party affirmation.
Re cash flow , there is the usual November article on donating to the WTS.