sorry but i'm fat and slow and wont move over. and i got a new bike and will crash and burn but be nice and help me up.and if i look lost i probably am.so be nice and point the way.and j thanks for the new bike like it.yukon
Your best bet is to keep an eye out for "beginner rides" posted here. There are lots of places to go out with a local or two who will be more than happy to show you around. See you out there, and welcome to the fun.
Welcome... You can find maps all over the INTARDNETS. MTBNJ has a list of ALL major areas to ride. NJ state maps can be gotten trail side (normally only in spring) and on the web site for each park. AND as has been mentioned there are maps stuck to the top of most threads.
However, when it come to riding... do not start alone. Like Brian said, join the beginner rides from this site or post that you are looking for a ride. Safety in numbers and all that jazz.