Yes, there are two brackets just like mofoco1 says, that attach to top part of windshield frame. There are two screws on each end of the cover that attach to these brackets, and also two or three screws that attach the bottom of the cover to the windshield frame. Here are a few photos I took a short time back when I was removing stuff to install a new soft top. Two of the photos are from driver side taken from above. The top is obviously off, and you can see the wiper mechanism inside the cover and the screws holding the cover on. Third photo is from passenger side and you can see the two screws that likewise hold the cover to the bracket on that side.
Also included a couple of old photos from years ago when I started tearing things down. First one shows old cover from passenger side, obvious mounting screw holes. Second old photo shows the hard top coming off. The black bracket closest in the foreground is one of the brackets mofoco1 refers to. If you look close you can see in that bracket the holes for the screws that hold the cover. There is another bracket like this one on the driver side.
Hope this helps. If you are still having trouble figuring out those brackets, shoot me a PM and I can pull them out and take a picture of them for you. Good luck.
Bob