[flexcoders] Problems creating a skin with scale-9 from an embed Flash symbol with a bitmap

[João]

Is it possible to create a Flex 2 scale-9'ed skin from a symbol
created on Flash 8 IDE using a bitmap?

I am able to embed symbols from Flash 8 using: 

overSkin: Embed(source="flex_skins.swf",
symbol="AccordionHeader_overSkin");

If those symbols have a scale-9 grid, they scale fine. But if they are
not composed by shapes, but by bitmaps, scale-9 doesn't seem to work.

Am i doing something wrong, or is this a problem?

Thanks, 

João Saleiro