I would assume that, on the edit co-author page, next to each co-author name is a number (1-10). You just enter how many tenth's they contributed to the story and how mnay points they'd get when its published. Everyone would get 10x that when its featured.
Anyone interested?
too much room for biased opinions from what i see. person A asks B to help, B does most, if not all the work. then A says, 1/10 of the work from B. B gets pissed and leaves the site.
nate