Need help with heater problem

[ScottH]

Hey guys, well finally got the chance to look at my 72 blower not working. Turns out the blower relay wasn't there, PO did some "creative" wiring on this truck. Anyway got it to work while the relay is on order. Problem I'm having is no matter where I have the controls, all the air blows out of the a/c vents. I'm trying to make sure I have heat and defrosters for the cool weather. The cables seem to be moving, but nothing out of the floor vent or the defrosters regardless of where I move the controls.

Any help or suggestions would be appreciated.

Thanks.