If you are refering to a side marker light lens: according to the book 1. Using a small screwdriver, pry the sidemarker lamp forward and pull the rear of the sidemarker lamp out.
For the headlamps and foglamps, the process is slightly more involved, but as I always say, if I can do it any one can do it. Pull each front wheel off and the fender splash shield on the side you need to access. If you are changing a blinker bulb, you can now have access to it, though it's still not the easiest change. You might want to have a few plastic pop rivets and push pins handy as some may be snapped in half during the removal process. I believe the splash shield is more easily wiggled out and back in if you also remove at least 4 bolts along the side rocker panel on the side being worked on. Still, the spash shield is not the most enjoyable piece to work loose, or re-install.
Also, there is absolutely no access to it from the front. The lenses do not come off without getting slightly more involved.
Hope this helps.
http://home.comcast.net/~skatesharpening/fascai11.htm
above is what the passenger side assembly looks like behind the splash shield.
Pete S.