I have have two nice fully loaded and icon-tweaked Rox panels, one on the right side and one on the bottom, but the only way I know to re-order the icons is to drag them to the end of the of the panel past the one I want to move up. It seems that 'drag-and-drop' isn't that versatile, or perhaps I'm missing something.
But really what I want to know is where the panel contents are stored and if I can make changes there instead.