sound like 2 problems to me ... resister for the blower motor bad #1
Poke your head under the driver side of the dash with a flash light look to the right and work the leaver for the vent and see if the vacuum controls are working
There's plastic levers that the vacuum actuators attach to that open and close the vent doors. These tend to break off, which would explain the vents not working. You can order new ones at Midwest Jeep Willys or something like that.