Trouble with alpha transparencies and tweening

1

I set up some tween events that moved some words around in my flash movie back when I was using FlashMX. I can no longer get any of these alpha transparencies to work in the compiled flash8 movies. In the workspace they fade in and out just like they should, but when I compile the .swf file and play it they just show up 100% transparency without fades. I have even tried to rebuild the words as movies, buttons, and graphics, then set the transparencies and movement on them, and then set up the motion tweens as I did before with no luck. Has anyone seen this type of thing before?