Ebooks

Hello! Maybe I am being stupider than usual, but I am having the devil's own time trying to find an app that will read this epub3 book (A Fujoshi's Guide to Japanese vol. 1), which seems to have multimedia. I think Adobe Digital Editions will read it on my Windows 7 desktop, but it is also truncating some of the text on the right margin (!) and the text rendering is horrible. I'd love to read it on my iPad but I can't figure out what a good option is that actually supports this file format. Help?