Thanks Jug!
OK so as I was saying in another thread....
(forgot what it was now)
OH
Yeah maybe our Losties were TOLD that they are on Flight 815
but were deverted to some other flight (if you go with the conspiracy theory and that they were brought to the island)
And
Flight 815 really did crash and was found with all the dead people of that flight in it.
hmmmmmmmm?
then Ben would have known they were crashing