hello people!
i had the same problem on my AMD64. it took me a few hours, but now azureus is running.
if you go to the official site via
www.java.com >manual download... they don't offer a 64bit version of jre.
but if you click through firefox's install missing plugins and at the end of the dialogue at the link at the bottom you'll finally reach this location:
https://sdlcweb4d.sun.com/ECom/EComA...C6BBD258CA78D6
edit: sorry the link doesn't work. you have to click trough by yourself.
there's a 64bit version for linux. i installed it and now everything's working fine
hope this will help you