Here's the gauge cluster out:
Pry the needle off carefully, but use force.
Undo the two small screws (don't lose them!), and off come the gauges.
and here are the two peices:
Just make sure that when you are removing your instrument cluster from the car, that you put a towel on the steering column to prevent the face of the cluster from getting scratched. Also, now might be a good time to check your SI board batteries for corrosion. The tachometer and L/100km (fuel milege) guages each have a small tab that stops the needles at the "0" (zero). These little tabs are easily pulled out with your fingertips, and are easy to push back into place.
Oh, and try to resist turning your odometer backwards... 'cause you can, but shouldn't, of course.
Good luck,
Scott