you need to remove the screws around the outside of the interior panel. then you.....................
wait, if i remember correctly, you can't get @ the screws, since they're below the seal area. sorry, it's been awhile since i had to remove that panel.
you need to open your rear window, and use a long, slim screw driver (or anything similar) to flip the tab inside to release the latches. it sounds like it might have gotten bent. did you ever have a tough time opening the TG @ any time recently?