Dash lights on 02 GC Sport

Well almost a year ago i had problems with the van not starting up and some dash lights not working. I brought it to the dealer and they had to replace the BCM. Now there are 3 lights that wont come on for the speedometer and tach. If i pull the IOD will they work again? And if that doesnt work then how to i take out the instrument panel to check the bulbs? Where are the screws to remove it? Thanks a lot.