How to turn a color img into black and white

Hi does anyone know how to make a color image into a black and white image in flash? I have a really good image, but it is in color and I want it in black and white, does anyone have any suggestions?

My guess would be, download the fireworks trial ver.

Adobe Photoshop … or any other imaging program really. Just make it grayscale, and import the BnW image back into Flash