and it has a new battery what could the problem be other than being really old?

when you say it wouldnt start, do you mean it wouldnt crank? or did it crank and not start. maybe starter

If it is turning over, but won't start, then it is usually a blown fuel injector fuse or a blown ignition coil. It is also possible that because of it's age it may need a new fuel injection pump. If it's getting fuel and spark and still not starting, then it might be a bad timing belt. Which engine is in this car??? 2.8L?? How many miles??Age affects all cars in different ways.I wish I were there to offer it a little experienced loving care, that car will last another 10 years!!