Vista enables you to customize any gadget on the Sidebar by completely detaching it from the Sidebar. This makes it possible for you to then drag the gadget to any position you want on the entire desktop (to move a detached gadget, you just drag its icon around the desktop like you would any other desktop icon or title bar of any open window).

To detach a gadget, position the mouse pointer in the upper-right corner of the gadget and then drag the gadget off of the Sidebar to a new position on the desktop by using the handle that appears beneath the wrench. (This handle looks like eight tiny white dots in two columns.)

You can also detach a gadget by right-clicking the gadget and then clicking Detach from Sidebar on its shortcut menu. Vista then immediately redisplays the gadget on the desktop off to the side of the Sidebar. You are then free to drag the gadget to a new position on the desktop.