Tween Problem?

Hi i am creating a fadin affect for content to appear when a user clicks on my navigiation buttons. I have managed to make it work for the button called home_btn. But when i try to replicate the same code for my second button, about_btn nothing happens. After writing the code, i discover there are no erros. I would have to therefore assume that i have missed a few characters but yet i cannot see where. Please can you gurus help me out.

Anothe question i would like to ask is how do i ensure that when the use first loads up my page, the first thing they see is my welcome page, the page starting with, Hi welcome to my portfolio … because in my actions layer i have the command Stop(), but if i change it to Start(), it just loops around the whole page.

Please help if you can.