perhaps i am missing something. When I open your page in the browser, it looks to me as though the correct items are initially selected.
that part seams to be working.
the only part i dont see working is changing the select lists.
for this you need to add the populate list from array behaviors to the onchange event of the parent select list and the first child select list.
if you are still having a problem, please give more information than "it does not work" you need to describe what is happening on your page and what you expect to be happening.
