Oh my goodness!  Again, thank you all for responding!!  I have the newer (2015) model, according to the pictures provided by Spookshow and kmcsjr, thank you both!  I, being impatient, went ahead and took the screw out of the center of the motor area to try to separate it a little to see if I could look down there.  As far as I could tell, nothing happened.  So I dripped one drop of alcohol into the space and placed the train on the track, turned the power knob and squealed with delight!!  My train was running!!!!  I let it make a few laps around it's tiny circle and took it back off to replace the screw.  I replaced the screw, put it back on the track and NOTHING.  I loosened the screw about 3 turns, put it back on the track and it runs again!  Thank you all so much for your help!  And now that I know the difference between the battery and ballast and can now locate the commutator, I can follow the links supplied and make it better!!!  Thanks again!

Thank you both so much for responding!!  The connection to the tender appears to be okay.  The next question is...do I need to take out the 2 screws on the side of the motor to get to the parts that I think you are both referring to?  I'm trying so hard to post a picture of mine, however my file is too big and now I can't fix it.  Anyway, the battery is round (no square piece) and there is very little space between battery and motor.  Unless I can unscrew it without damaging it.

I looked back through all the posts about the D & S N scale trains and found 2 that were having the same issue I am.  The train will not run even though it is new right out of the box.  I purchased one from my local hobby shop to use with my Yard Boss set.  The track is fine, my Yard Boss works perfectly on it.  I unboxed the D & S Locomotive and Tender, placed them on the track and nothing happened.  I quickly boxed it back up, returned it to the sister hobby store (due to no additional sets at the first store) and exchanged for another new set.  I brought the second one home and am having the same issue, it won't run.  Taking hubby's advice, I took all the new track and power supply and set up a circle on my dining room table.  Still, it doesn't work.  I looked through the forum to see if others had the same problem, hoping it was something stupid like an on/off switch.  I found an answer, however I really don't understand it.  I was hoping someone here could explain it in "dumbed down" terms?  How do I apply power to the trucks while poking the commutator?  And where might I find these parts?  Here is the answer I found..."I am very happy to report  Cheesy that my loco works after all! I had it packaged up to go back to Bachmann but stopped at the hobby store in Green Bay first to purchase a different loco to get me started and the fellow said if you had it here, we could just check this one thing; so I booked out to my car and grabbed the package and we opened it up. He applied power to the trucks and spun the commutator with a small pick and off it went. He said it had probably been sitting a while and the lube grease had gotten stiff. "...Any help would be greatly appreciated.

Thanks, Carol