Color shifting between adobe and macromedia?

I built a layout for a website in photoshop and made half of it flash. I saved the cropped flash area as a png, imported into flash, put my full jpeg into fireworks to slice it and then put it in dreamweaver. When I switch the jpeg slice with my swf file the colors don’t match at all. Any ideas? I believe it occurs when I put the png into flash but my fiance said he thinks its a dreamweaver problem. Any help would be great, thanks!