If you go to this thread -
"Bluefire Reader app" - you can see where not only can you use Bluefire reader app to get the books, you can use Safari to download the books right into Bluefire (no e-mailing required). See the whole thread, but [not to highlight my own posts, but...] in #392 of that thread, you details on how to make a bookmarklet in Safari.
It works great!
Marilyn