This might not be what you want, but you could convert the files into an epub using calibre on a mac, then transfer the resulting file to iTunes and sync it with the iPad. Basically, you'd be reading the contents as a book. For this to work the page-to-page links need to be correct. Otherwise you will only get the pages up to where the first faulty link occurs. Also, the page links would have to be linear, i.e., no branching. Not a great general solution, but sometime it is useful.