I am recently finding two problems with my nook & ADE. First, library books generally come over as "unknown author" on the nook's "my documents" list. There does not appear to be a way to edit this in ADE.
Second, when the nook is connected to ADE, books which I have deleted from the nook, either borrowed & returned library books, or books deleted from the B&N "my library" still show up as "shadows" on my nook in ADE. They show up as long numbered documents with exclamation points on them, as "missing."