[FlashCS6-AC2]scrolling MC from right to left and that also update a text box

Hi all,
I’m trying to build a scrolling MC from right to left and that also will change a text box with number between 0 to 2500.
It need to move like when we have the scrolling bar at the media player – and we scrolling the time indicator from time to time so we can see which time we are now.
The width is about 316PX.
I’m create the scrolling MC from right to left – but don’t know how to build it to be change the number……
I’m attach image as example of what I need.
Thanks for any help.