I got my stang fired-up today

... but I had to cross the terminals on the starter solenoid with a screwdriver to do so.
I swapped out a Tremec 3550 for a Jerico (which doesn't have any connections for the factory wiring harnesses - speedo, reverse lights, etc.) ...I was wondering if that had anything to do with my problem (which is when I depress the clutch pedal and turn the key nothing happens!), or did my neutral safety switch fail?
EDIT: (brain-dead) - oh yeah, and how do I bypass the neutral safety switch to see if that's what my problem is... I took a quick look and saw two harnesses with three wires going into each - and I figured it would only have two (simple) ...any help greatly appreciated!!