How to do this, menu, several mc inside scrolling

hi, i post here my fla and swf to explain my problem. What im trying to do is to have a mc scrolling with the date (sorry is in spanish: JUEVES 10, JUEVES 17, JUEVES 23) and every time the scroll happens and a new day is shown the external swf corresponding to that day will be loaded.
So, when the users press the >>> button, the mc will scroll (this is when i get stucked, as you can see, im only getting to works one time) and when the user press the <<< button, the scroll should go backwards, showing the previous date.
Maybe my explanation is a little messy, but i think the swf explains well my problem.
Any help would be really apreciated.