when you try to start it what happens?
does it click or do anything?
leave the key in the off position and get a piece of wire and connect it to the little wire with a spade terminal on it going to the starter motor, then connect the wire you just put on to the positive side of the battery... does the engine now crank?
i would assume that by you saying shifter your car is manual? if it's auto it could be the neutral start switch on the transmission, it will probably need replacing
let us know how you get on
