I might be wrong, but I dont think you use glue for the helicoil itself, just for the binding screw itself. if your existing hole isn't too fucked up you can use it for the helicoil, otherwise just drill a nice little pilot hole and thread it in good and solid. you might have to cut the helicoil down a little bit so it sits flush on the ski, but maybe someone else can give a better set of instructions.