Haha.... I'm a few thousand miles away from my car now but... Start by pulling the piece off at the top of the window (you look right at it when the hatch is open), then remove the previously hidden push clip on the left and right side trim pieces followed by removing the ball mounts for the cover shield thing (the top half of the ball partially pulls out, then you pull out the entire clip... Proceed to pull those side pieces off. Then you just pull down on the big plastic part on the hatch... IIRC you may need to remove the handle pocket.
Be careful with the side trim because they do have those stupid metal clips which bite on pretty tight.