Stanza will not be able to read it while it has DRM, but the free Bluefire Reader will. You need to authorise the app with your adobe editions log on and password, and then transfer the book to the Bluefire app using iTunes app file sharing. (Or email it to yourself, use DropBox, or a number of other options).
FAQ here:
http://www.bluefirereader.com/help/index.html