Originally Posted by pez
yea i see where a possible screw is missing..but its from inside to out..meaning i have to open it dont i?
No.
The screw that holds your lens in goes from the body of the car into the brake light assembly, and you get to it in the method that John666 posted. If it's missing a screw, you just need to add a screw. Removing the brake light assembly shouldn't be necessary at all. If it's something different than what I'm describing, please take another picture and post it.