I just replaced mine with hopefully good results. Instead of messing w/ the tack strips & top, I just unscrewed the bolts, put a good sized washer on them, and tucked the new liner in behind the washer. The washers help the new liner liner butt up against the top.

I used steel snaps to attach the liner to the seat back. These will be used to attach the convertible boot to the back of the seat so it won't flap in the wind.