Loadmovie help


I’m having a problem with loadmovie at the moment with my website…here’s my situation.

I’ve put all my buttons for my navigation in a movieclip on the main stage and then in my movieclip I added the action of loading 3 seperate swf into 3 separate movieclip which is in the movieclip where the buttons are and I named it for example “a”,“b”,“c”.

Now my problem is that I’ve created a button in the swf in movieclip “c” to load and replace “a” with another swf. I’m not sure if it’s possible is it possible to do that?? if its possible how would I do that??