[Brian R.]

Easy stuff first:
Remove the starter relay from the box by the battery and test continuity (with an ohmmeter or circuit tester) on the two opposing pairs of contacts on the relay. One pair (parallel pair) should have continuity and the other (perpendicular pair) should not have continuity.

Apply battery voltage across the two opposite leads with continuity. Now the other opposing pair should also have continuity. Remove the battery voltage. Lack of continuity should return to the unpowered pair. If something doesn't fit, replace the starter relay. That was your problem. If the starter relay is perfect, post again.