Mark -

I had the same (unpleasant) experience. Thankfully JETPILOT's little tutorial saved the day.

What's kind of odd is that if your wing tanks are empty, engines 1 and 3 won't feed from the center tank unless the wing tank booster pumps are off (and crossfeeds open, obviously).  The CS C-130 system works about the same except I don't think it cares about the status of an empty tank's boost pump.

On any CS bird I just keep the crossfeeds open and turn off the boost pumps for any engine that I want to be fed from somewhere else and it works for me...