Car won"t start

Hi, I have a 1999 Plymouth Voyager w a 3 litre. Engine that was in a front end collision. I"ve got the body back together. But am unable to get the starter to turn over. I have elect to the lights, dome, and everything else. But none to the starter. I have been told that there is a "Inertia switch" THat shuts down the power, and the fuel on a collisson. But am totally lost. Cant find anything in my books. Or on the car. Possibly You might touch on it in your "forum" But have a visability problem, and don"t read well. (Also have a fixed income becouse of this. Or would take it to a local mechanic at this point.) Can you please, please help me? :Roll: