I have a stock video that I know has the alpha channel included however when I import to flash it still shows the black background. I have tried importing the .mov directly (with the conversion to FLV on the fly) and tried going to the flash video encoder to convert .mov to .flv. Of course I'm using the On2 codec with "encode alpha channel" checked every time.

You can see the video here: http://www.forkcreative.com/videos/tree.mov

Thanks for any help you can provide.