If you go to James George's website
http://itrmagictricks.com/Company_-_Pro ... index.html there are free videos you can download which show how to rethread and repair the ITR's; it is a bit fiddly but you do get the hang of it.
There also some ITR routines you can download as well as a great and easy method for tying IT loops.
There is also a free Ebook available with some good routines inside.
As for LeClair, I don't have the DVD but I did buy the book many years ago which features mostly the same material and it is one one of the best books on IT I have ever read.