Skin scroll bar component

have found this url http://livedocs.macromedia.com/flash/mx2004/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=Flash_MX_2004_Documentation&file=03_cus17.htm in order to skin the scrollbar of a List component component in flash mx 2004 but dont work for me, my new arrowdown is missing when i click on the down arrow, have u an issue about that ? thanks.

had an idea when was sleeping (:D) if i’m using the list component in flash mx 2004 and disable the vertical scrollbar.
Then i m doing my own scrollbar and play with the vPosition attribute to scroll up or down the list.

I ve put this code: list.vPosition = list.vPosition + 1;
on the down button, it s working fine but have to press again to go down, is there a way to go down auto ? with some kind of boucle with a timer ?