In Ubuntu jaunty 9.04 that’s not the default behaviour. So install all the wanted widgets then right click on them and in Window select the following:
Sticky
Widget
Keep below
If as soon as you select the Widget settings the widget disappear it means that the Widget layer plugin is activated in your compiz fusion options. Inactivate this option in CompizConfig Settings Manager.
The goal of the widget layer is to have the widgets displayed on top of all your windows when pressing a special key – F9 is the default key.
