I found that it was a little less infuriating if I pushed the pin in from an old chain or from the extra piece of chain left over. The other method I found is to out the pin into the center section (where you should just be able to slide it through) then take the junction that has the two little dohickies that will go on the outside (try to stay with me and my technical language) and only worry about ONE of the little dohickies! Use the chain tool to push the pin from the inner section through one of the outer sections (like almost all the way through). Then move the inner section to its correct position, sandwiched between the two dohickies, and put the side of the chain up that has the peg sticking out. Now you should be able to use the chain tool to push the pin back through all sections of the connector as long as you go slowly and softly. If you try to angrily jam it through the other sections you will likely miss and have to start all over. Let me know if you want me to make a diagram.