If you don't want it too small, you can use WinWarden to automatically move, resize, ontop and clip the Azureus windows when it's inactive.
Activate the status tab, and try there settings:
;WinWarden.ini
Active ,Azureus,,,,0,0,Right,Bottom,Off,Off,,Off,,,,,,,,Maximize
Deactivated,Azureus,,,,-Right,-Bottom,200,400,On,Off,,20,180,160,180,,,,,Restore
You'll find the downloads and more info at
Skrommel Software.
Skrommel