ok heres what im thinking im going to do now thanks from all your guys replies ... line up the piece and trace a line around it where its going to get put on and drill holes thru the fiberglas into the metal or bumper to use pop rivets. use either some kind of metal epoxy or liquid nails on the back of the piece, stick it to the panel or bumper then insert the pop rivets so it stays in place. this way it will stay on for sure using the backing and the rivets. then im going to fill the seem lines with a type of glue from that website that spl provided above, then after that go over top of that with either some duraglass or fiberglass gel. i heard duraglass is a nice strong body filler and the fglass gel doesnt run like regular resin. or should i do the duraglass or gel first then use the glue over that? i thoght i should do the glue first cuz then i could go over top of that with the filler or gel and sand it real smooth into the panel and piece. what you guys think of that ??!!