joycie,
To add to what Todd said and then to answer your other question...
Yes, the dealer is the only one that can program your key since you do not have two working ignition keys. From my understanding, a good locksmith (not those at Home Depot or Walmart) MAY be able to program it too, but I do not know for sure. It might be something to look into.
Did you get an owners manual when you got your Trac? If so, open it up and learn about your vehicle. Some of the question you have, or may have, will be covered in there. It just happens to be that instructions to program your key fob is covered in there too. It is easier to look it up yourself than it is to type the instructions myself since I type so slow.
Don't have an owners manual?
Follow the link below...
Tom