Azureus is one of those programs that people keep using because they usually don't know that there's something better out there.
Azureus is one of the biggest pieces of bloat-ware out. If you're on a PC use utorrent. It does just what you need it to, takes up VERY little memory usage, and most importantly doesn't need Java.
I mean how many features in Azureus do you really use or need for that matter?