Make sure your battery, and starter wires are connected tightly, and that they are all connected. If that dosen't do anything find the starter relay and check that. If it is not that it may be your ignition switch.
The relay is not the same and should be somewhere on the firewall or the fender. I think it should be on the drivers side. When I say ignition switch I don't mean where the key goes in. I should have said starter switch. In the steering colum the key pushes a rod down when you turn it. At start the rod hits the starter switch. It will be somewhere toward the mid to bottom section of the steering colum.