Jim.....Been a long time since I had a hardtop, but I think the headliner is held up by rods that go from side to side through pockets sewn into the back of the material. Each rod is different so they need to be kept in order. The clips that hold the rods are also specific to each rod. The reveal mouldings at the sides, front, and back hold the edges in place. Some 3M's upholstery glue might help to hold the edges while getting the mouldings back on. Most of the people who do this for a living, start at the back and work toward the front, from side to side, streching and triming as they go......John