2002 dodge 1500 ram blower is working hi and low are good but no air through my vents or defrost or floor? selection knob to adjust my vents not working? help

A mode door is stuck or the actuator is bad. (usually it's the actuator). You'll have to find out which mode door redirects air to the floor/defrost vents and get access to it to replace the actuator. Sometimes you can gain access through glove box or air bag hole, sometimes you have to move the dash out of the way.

so ur saying it has two actuator's cuz i bought one but da one he work on he said it was good. and would it be the same or two different styles?

The recirculation door has broke and fallen over the hole the air comes in through. If you remove blower motor, you can removebroken door. You just have to work with it, but it will come out.