Making the image B&W in flash MX

Hi!
Is it possible to make an RGB image B&W and then motion-tweeining to it’s RGB colors in Flash MX?
Could somebody help me with this basic question?
Thanks.

mx-guest2004

i dont think so… might be wrong though hehe

{you can first make the image greyscale in [ps] first but then it just wouldn’t work with the tweening because you said you wanted it converted back to rgb}