Well first off, welcome to HAN. Enjoy your time with us.

Mine were a tad dim, even on full brightness.. I took the blue-green bulb covers off, and that seemed to help a tad. It's an easy job..takes 10 mins and a phillips screwdriver.
Basically, remove the gauge cluster trim by taking out the two screws on the top edge, then there are three more screws that hold the guage cluster in. Take those out, and pull the cluster out. Turn it around as best you can...and on the back will be three large knob-type lamp holders. It's pretty self-explanatory from there.

Once again, welcome.