Perhaps the account was false. Or maybe election officials allowed for a sampling to be opened and counted under strict supervision (which would explain why nobody's talking about it, since it may have been extra-legal).
Hey, I didn't make this story up. I merely circulated it without regard to its veracity in a shameless display of rumor-mongering.
Besides, if Kerry knew he had the votes to force a recount or win in Ohio, I don't think we would have conceded the election at all...