it's actually pretty east.
1. remove the concole by removing the 2 screws above the guages and the 1 screw behing the hazard light button.
2. remove the 4 screws that mount the guage housing.
3. lower yuor steering wheel, unplug the guages, and remove it from the car.
4. on the back of the assembly, on the section with thte shift indicator, you will see a device that is screwed down. it is white plastic and kind of sticks out. it's very obvious.
5. there are i think 2 screws that hold it in place. when you remove it, you will see that it houses the light for the shift indicator.
next check the voltage to the lights with a VOM and then find replacement bulbs. if you use LEDs, you may also need to use resistors to get it right.
here is a link to an LED calculator.
http://metku.net/index.html?sect=view&n=1&path=mods/ledcalc/index_eng
and here is a resistor reference from a friend's website.
http://www.codeflux.com/resistors/