Check with your local geocaching association (I checked your profile, and I think the Upstate South Carolina Geocaching Association is it). Anywho, check through the forums -- there is usually a place where you can get questions answered. Most of the geocachers I have crossed paths with have been super-friendly, and are glad to assist.
Night caching is a lot of fun. The few that are around here work as follows: you park your car, walk to the coordinates, and shine your flashlight around. If you have done everything right, you will see reflectors, reflective paint, fire tacks that will show you where to go (Back when I was a Boy Scout, we used to call these cats-eye trails). Read the cache page carefully, because there will be information describing what to do.
These hides aren't to be confused with traipsing off into the woods at night looking for geocaches. I admit to more than my share of eine kleine nachtcache, but can tell you that it can be frustrating.
In any event, I do not recommend doing any caching at night alone. Keep to the trails, turn the "trace" feature on your gps unit, and liberally mark where you parked the car and other waypoints.
Peace and love