Here is a address for replacement bulbs for your warnings lights on the cluster panel.
http://www.oznium.com/plcc-2
I have been trying to track down components for cluster repairs since they are a huge issue but the people who know are the ones in business for cluster repair. I was told today by two resistor and semiconductor manufacturers that they couldn't give me any data on parts they made over 10 years ago because they were made for GM per their needs. Kind of B.S in my opinion, these chips cost 50 cents and they make it so you have to buy a new/remanufactured or send it off for repair so you are spending a minimum of 200 if you have a bad 50 cent chip. I cracked a trace i think in my board replacing bulbs by pulling in and out of vehicle too many times. Just be careful pulling these boards out, most places will not accept a panel that has been altered in any way (including stepper motors) as a core, so you have to eat a core charge.