To change the headlight bulbs?? I just reached up from under the car and removed the sockets.....seemed easier to me, but......I will have to check my car when I get a chance to head over to my Mom's house. I have replaced one of my reverse lights but can't remember how I did it. I will have an answer for you tomorrow.
For the front lights you have to remove the whole housing from the car. Lay on the ground and look up at the front bumper and you will see what needs to be done. There are a few hex screws that must come out and then the whole lamp assembly just comes out the front rather easily.