I've checked Inkmesh - best I can see, the books I want are not available elsewhere (at least, not to US citizens):
http://inkmesh.com/ebooks/alias-grac...qs=alias+grace
(I wouldn't have asked if I wasn't pretty sure I can't get them elsewhere. I really hate wrangling with Sony software.
)
If the Reader software is installed, can you still download the book to ADE and never use the Reader program?