It seems these guys likely baited Foley, knowing his proclivities, with the IM's as a prank. Very believable for young heterosexual guys. Foley likely resigned because he may not really have known he was being yanked. It is clear there was more than one former page involved because as the IM's got into more hands, they somehow ended up in the hands of the other camp and were sent to ABC. Perhaps this is where Matthew comes in..???.. Perhaps Mathew conscientiously objected to baiting Foley? We'll know shortly I am sure.
Excellent analysis, IMO.