Decompile swf

Hello, we need someone who can decompile an swf file, remove the background, or set the background value to transparent so that we can import this file into a page with a multicoloured background. Not sure of the correct words used, but in photoshop it would be the same as setting the background to transparent and saving the file as a .png. Simple project but we need this done fairly quickly...any questions, give us a shout.