When I watched the "Crate Games" video, I was massively impressed...with myself. I basically came up with a similar concept of my own devising. Actually, there is no huge trick to the program. You just use a puppy's natural instinct to play and seek reward in order to get him to run into the crate and stay in for progressively longer periods.
Obviously, there will be times when you have to put the pup up before he falls in love with his crate. You can work on associating the box with good things while still using it to confine him for his own safety. Older pups who've never been confined--or who've already decided that they don't like it--require more patience. Check your own attitude about the crate, too. You are teaching your pup about one of the good things in life. It helps if you believe that.
Obviously, there will be times when you have to put the pup up before he falls in love with his crate. You can work on associating the box with good things while still using it to confine him for his own safety. Older pups who've never been confined--or who've already decided that they don't like it--require more patience. Check your own attitude about the crate, too. You are teaching your pup about one of the good things in life. It helps if you believe that.