Panel is a piece of cake to remove. First, remove the screw that's in the "bag hook" over by the passenger side of the dash. Then pull the entire dash center portion straight toward the back of the truck. It uses metal retaining tabs to hold it in place, so pull hard and it'll POP off.
Once that's off it'll be obvious how to remove the climate control panel (depending on the model, it'll have 4 screws and a couple electrical connectors). I've never actually opened up that panel, so I don't know what sort of bulbs are required.
Ryan