The top 2 pictures are the lower and centre clips. The bottom picture is the top fastening clip. I think the technique was to slide the top and bottom fixings towards the outside of the car to release and then slide the whole lot up to deal with the 2 centre ones, You have to handle the sticky stuff too of course.
Still have some leaks mind, but not nearly as bad. Also think there is a leak at the front since the windscreen is usually very wet on the inside, even when the boot is dry, Can't face investigating that at the moment.