headlight switch problem

just traded my blown up 85 iroc for a 90 rallysport convertable.
well everything is perfect except for my head light switch, i pulled it out so the headlights would come on, but when i pushed it in to turn them off the whole switch moved back as i pushed the knob back in, i had to pry the fog light switch cover off and stick my finger back in there behind the switch, then push the knob in so the lights would go off.
how do i change the switch. i cant get the instrument panel face plate off, im afraid i will break it. help please.

you have to take the dash out if im correct, in order to replace the switch anyway. the knob is held on by a spring tention clip. push the clip towards the front of the knob, and pull it off, then the switch will pull out from the back.

Got the new style interior right??

Well Pull the bottem panel off under the steering wheel.. (by your knees when your driving) Then you'l see two torx bolts holding the gauge faceplate off.. Pull those out, then if you pull on the bezel, it should come off.. (just clips holding it on) the headlight switch is fastened to the bezel)