Compustar Remote Start Problems

Looking at buying a Compustar 2WSS-AS system but will be installing it myself.  Two questions:

1) Can I use a DEI 555U to make the remote start work?  (This is on a 2005 Subaru Impreza WRX STi, which has an RF chip in key immobilizer system)

2) Can I use any 3/4 wire sensors that I want, or does Compustar make sensors specifically for this model?

I am just finishing up my Compustar 2WSS-AS install on a 2005 Subaru Impreza WRX STi.

Everything works except for remote start!  I cannot get the thing to go into reservation mode, and I have followed the steps EXACTLY numerous times.  It says the engine should remain running when I take the key out of the ignition, but it does not.  Then when I try to start it, I get the three chirps from the siren followed by 7 flashes of the parking lights indicating that the car was not in reservation mode.

I know that one of the triggers for activating reservation mode is putting the car in neutral, and I am doing that, but I think part of the problem may stem from the fact that there is no wire (at least from what I read in the installation manual) that actually connects to the NPS or other wire that shows when the transmission is in neutral.  What am I missing?  I've checked to make sure that the wires from the relay go to the correct sides of the starter wire, etc.  The car has learned my tach successfully, and the relays are clicking when I take my foot off of the brake and set the E-brake.

I didn't bypass the clutch yet (Speaking of which - do I need a relay for that?), but I figured I could at least get the car to remote start if I had my foot on the clutch...  Since it's not even going into reservation mode, that's no good.

Yes, the E-brake wire is connected to the E-brake.  That is actually one of the first wires I connected.  It shows ground when engaged and 12 volts when disengaged.

Okay, so it has nothing to do with being in neutral or not, but I always am in neutral.

Any other ideas?