I love this pattern, too. Lots of eye movement, which always...well...catches my eye
Here's a link to a free pattern. It breaks it down to simple for me to understand steps.
I like the one in the link, but it is a little busy for my taste. Mine will be a little bit simpler with fabric choices.
enjoy! And let us know if you start it .... we are all interested!!
http://www.quilterscache.com/J/JacksChainBlock.html