There are two problems here:

1. panel.add( component comp, int index ) index -1 not work. It suppose to insert the component to the end. But visually, the specific component does not show up at the end.
2. On heavy weight panel or LWBorderedPanel, if use FlowLayout(), the normal index such as 0, 1, 2.. works. But if use LWVerticalLayout(), components are not
added as the index. Visully, they still show up as the sequence you call "add" method.