Transparent PNG and Importing to FLash... I am about to cry

I have been working on this problem for the last 3 hours. I am trying to save every layer as a PNG with a transparent background. It seems to be working except when I import into flash.

At first, it seems to be working. I can drag the image and it looks to have no background. Then, when I import all of the different images, one image ALWAYS is blocked. When I move the image above the blocked image, I can then see it. Its like the transparent background is actually blocking the image.

Whats wierd is no matter what I do its always just one image getting blocked. And when I send the blocking image to the back, the next image then blocks a different picture!!! I can’t figuire this out and I am seriously about to cry. PLEASEEE HELP!

Mike