The good news is, Annie's Attic has reissued the pattern for the Cathedral Window Afghan!
They've changed the color scheme (well, I can't blame them for that! It was hard enough to come up with the right colors the first time I made it! Since then, several of the yarns I used have either been discontinued, or the dye lot has been rather significantly changed. But I'll address that in another blog.), but the pattern is exactly the same.
Go to http://www.anniesattic.com/ and search for "cathedral window afghan" and you will find the pattern available for $6.99. It is Item #885034.