Julian. That's really not so relevant... if you embed an image, the image
goes inside SWF, when you load it, it remains outside of the SWF, just lives
somewhere on the HD. When loading, the way you load a SWF may affect the how
the player will resolve relative URLs. I believe, that if the SWF is loaded
into the same application domain as the loading SWF (especially, if that SWF
was loaded using Loader.loadBytes()), there's no reason to think that URLs
should be resolved relatively to the loaded SWF original domain simply
because it may not even have one.