Movie clip, onclick load mc.home

Hey guys I got a realy dumm question about movieclips. And I just can find anything to help me. Im making my portfolio site with flash, and I want to open a movieclip when someone clicks on a button…

Ok here’s my question, how can I make a button that when you click on it it loads a movieclip and it has to stay there until you click on a other button?

And how do give that button a fade in fade out effect?

The fade in fade out is for this.

O - O - O - O <–buttons)

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Contact

When your mouse goes over a button the text “contact” has to fade out and the text for a other button should fade in the box.

Well thats about it, I hope you can help me with this please!