While the Sacred Myths and Rites of the Madrians appears to be no longer available through Amazon, it is still available through Lulu. http://www.lulu.com/shop/philip-jackson/sacred-myths-and-rites/hardcover/product-23253268.html
The Janite Deanic Ekklesia, which consists of Clan Jana and the Janite Order of Priestesses, is not Madrian and so some of the teachings and practices found within the SMR do not reflect Janite teachings and practices. However, this is a wonderful source for the Deanic scriptures. We also accept almost all of the teachings as found in the long form of the Catechism with only a few exceptions. This hardcover book also includes a lovely prayer section.
In the meantime, plans are in place to publish our own edition of the scriptures in the near future. We now have access to a publisher, thanks to one of our Sorellas (Sisters).
A. M. Pamela