Need big time help regarding scrolling field

Ok, I have a link to the site that I'm making for someone (I'm not making big money on it)...Basically I need help on a scrolling field i've created...Here is the link to the site (it doesn't have a preloader and i haven't optimized image sizes yet).

ok go here

www.michaelzhair.com

When the flash loads, press skip intro...

3 boxes should pop up (a big on one the left, and 2 smaller ones on the right)...

Notice that you can scroll up and down now while the background stays still.

In the box on the right, under women, there is a box button with the number 1 in it. when you click that a picture on the left of flowers should appear (I know it doesn't fit yet but I will fix that as soon as I figure out how to do this)...So anyway...The way I got the background to stay still is, I put the actual bg picture in my scene 2 and I put the scroll field on top of it inside scene 2...Normally, since I put the scroll box on top of the background picture, the scroll field would block the entire image when I preview movie...So all I would get is a white field with a scroll box on the right. So the way I get it so you can see the scroll field and the text box is I changed the alpha of the scroll field to 50% so you can see the bg and the scroll....the problem is when you click on that button with the 1 in it...It loads the image of the flowers also with 50% alpha!!!! (NOO!!!!!!!)....The reason it's doing this is because the alpha of the scroll box is 50%...So how would someone recommend doing the effect that I want?