Help with loader or alpha tween

Hello . I am trying to create a swf that when a button is rolled onto with the cursor, text is to appear in a separate place.

I am wondering how to accomplish this in several different ways using only ONE file (or files embedded in the swf)

a- change the alpha of the target text on rollover
b- change the frame of the movie clip containing the tet on rollover
c- load the text into the target movie clip

preferably, the alpha would shift in a fade-in effect, and the text would be loaded into the MC. I have tried this with no luck, any suggestions?}

I know how a dynamic textbox works, but i have no idea how i can fade it in…