Topic: blending - is it possible?

:?:   :?:   :?:

In Flash CS4:
if I add a top level layer and set the blending to "multiply," it doesn't seem to affect the photos. is there a way to apply a blend over the top of my photos?

*edit* I found a good good forum, and had the question answered:
gotoandlearnforum com/viewtopic.php?f=5&t=23768&p=108576#p108576

Now, does anyone know how to blend (cs3 and cs4) and have it affect everything EXCEPT the background? if I can figure this last thing out I'll be made in the shade...

thanks for the help!