You don't need a clutch to change gears in an engine that's not running. Your trans is either shifting or not. If you can't hit all the gears (with a little bouncing of the stick) with the car off, you have something messed up in your trans or the linkage. If it shifts, put it in second with the car off. Put the clutch in and hit the starter. If the car jumps forward, your clutch/hydraulics/cable is the problem.