Here are some good instructions I received from a tech guy at Lift-the-Dot. He was extremely helpful.
1. Removing the Lift-the-Dot
"Removing the Lift the Dot socket is fairly easy. There are four legs on the socket tha go through the foundation material and a metal back plate. The legs are then curled against the back plate to hold the socket in place. All you need to do is pry up and straighten each leg, and the socket can be removed. That being said, you should examine the condition of the material where the socket was attached and be sure it is still strong enough for the replacement socket. You may need to reinforce the areas that were originally cut out or pierced by sewing or gluing damaged spots, but still allow for the legs of the new socket to go through as required."
2. Replacing the Lift-the-Dot
"For only a few repairs, no special tool is really needed. Just insert the socket legs through the material and put the back plate in place with the legs sticking through. With the back plate facing up, keep steady pressure in the center of the plate, and carefully bend each leg down toward the plate. Once the legs are fairly flat, you can make them more flush and secure to the plate by tapping them with a non metal hammer (such as nylon or leather) or similar weighted tool. You could also place a small flat piece of wood against the legs, and tap the wood with a standard hammer at each leg location to finish up. Be careful not to hit too hard, which could damage the body of the socket. You should be able to get the sockets well secured using this approach."
Would that all companies were so helpful!