Hey buddy - If you find out the answer to this question, let me know.
I'm dealing with another similar problem, but in my case my airbag computer was built for a car that had front and side bags and was installed in a car with only front bags. Kind of like yours. The computer is looking for side bags that aren't there - in your case.
Your car sees the sensors, tensioners etc. but not the side bags.
I assume what needs to be done is (1) either get a computer that only has front bag and front sensor inputs; or (2) figure out a way to make the existing computer happy by giving it a resistive load to test each time the car is started.
If you come across a airbag computer connector pin hook-up schematic, please send me a copy. With this, you should be able to address your airbag fault light.
Another question, have you pulled your airbag system fault codes? It might be a good idea, since you are troubleshooting a safety system. The ODB II interface will not give you these codes (I think) but the diagnostic connector will. A good dealer technician should be able to pull these for you. They might even do it for free, or you can hook up the LED test harness (which might require some do it yourself wiring)
Anyway, good luck on your search and drop me a mail if you find out anything. (I have PM'd you my personal address)