Ok was playing around as was able to do the following:
on a computer without Adobe Digital Editions, I was able to take out a book from the public library by downloading the acsm file as normal. Then instead of opening it on my computer I simply emailed the file to myself. Opened it on my Ipad within Bluefire Reader. It then downloaded the book automatically, and I was good to go. So you can skip Itunes and adobe digital editions.