No, don't worry, both ARE available. We produced and shipped decks and kits at the same time. However, we haven't produced any separate copies of the book - i.e. it only comes with the kit (sometimes the printer over-runs on the books and we have a few left to sell separately - i.e. we have some Tarot of Prague books available - but this time there was not even ONE left over - nice, accurate printing, but it does mean there are no separate books to sell).
As far as I can see from the ordering, the decks are now sold out at the distributor but there are plenty of kits left (we shipped more kits than decks - looks like we have to send another shipment!)
Oh - and Gregory, I tend to agree that it's really important to read the stories for this deck. It's possible to track nearly all of them down on the web, but the book has summaries of each, so it's a much quicker way to get the "feel" of each tale.