The locomotive doesn't have a little door like the instruction manual shows.  So I popped the front off thinking it may be behind the lid.  I see some wires but no switches.

I purchased the 2007 Northern Lights Holiday train set and set it up around the tree for Christmas.   The instruction manual says to open  the smokebox door on the front of the locomotive and turn the switch on to make smoke.  However, my train does not have a switch.  So I dropped a few drops of smoke oil down the smokestack anyway to see what would happen.  Still no smoke.   Do I have a defective locomotive?  Or a newer model.