Maarten D. de Jong
Is the discard pile face up?
I believe so. I certainly see no harm in making this public knowledge, in any case. But the game can be played equally well with a face down 7 card-discard.
Just to be sure I interpreted it correctly: When one player´s limited number of resources runs out but the resources have not yet been built in town (they are still behind the screen) what happens?
Basically what you already deduced yourself: nothing in particular, he just doesn't get any more resources from the general supply.