[gutvol-d] How to submit a new file to a posted ebook?

If I've finished producing a version of a posted text (such as HTML or PDF) and I want to get that submitted and posted ... how would I go about that/who should I bug with my e-mail? I'm thinking it would either me one of the white-washers or the errata e-mail (which ends up in Jim's lap anyway), but I don't want to bother those folks who are overworked already, unless I know I'm supposed to be bothering them. :) Josh