Here's how I did it.
d2dak,
I just did this the other night. Sorry, I have no pictures and it's pitch black outside right now. But, imagine you have the hatch open and are sitting on the bed of the truck (facing the area behind the vehicle) and looking up at the two lights. On the right side of each light, you should be able to insert a thin flathead screwdriver (in the middle of the right edge of the light). If you carefully pry it up slightly, you should be able to pull the entire light assembly out, starting with the RIGHT SIDE of the light. It should come out with the light cover attached to the light housing. Once you get that out, the light cover attaches in the four corners of the light housing....this will be obvious once you get the assembly out of the hatch. Mine came out very easily once I figured out how to do it. Really, all the interior lights are fairly easy to change out once you do it for the first time. Hope that helps. Good luck!