No they didn't and OBL has all the money he needs from his own pocket. You can accuse the Saudi's of supporting Palestinian terrorists and you would be right but the Saudi Government does NOT support Bin Laden. If you are looking for an Al Quaeda sponsor the most likely suspect is Iran and to a lesser degree good old Saddam. Why Saddam? Because it was in his strategic interests that OBL overthrow the Saudi government. Your knowledge of that region is non-existent. All you know is what everyone else knows, 15 of the hijackers were Saudi nationals operating out of Afghanistan under orders from another Saudi national based in Afghanistan who was expelled from his home country and disowned by his own family.