This course is really excellent; a bit out to date, so you'll have to adapt the vocabulary, and some forms of sentences, but the core is perfect.
It will be a long and hard work to digitize all the course. There are numerous books.
The First and second are finished. Stll doing some corrections. (with the incommensurable help of Demi Puppet!)
Work on the Module 3 is on the way. The original document is so badly scanned that I'll have to type (quite) everything :( .
It would be nice to check-proof them and report any error.