Fullscreen background Flash

I want a fullscreen flash background loader. The levels/layers on top must not scale. I now have a non XML version with minor bugs. Existing code can be altered / deleted, as long as the result is as expected. - XML based - JPG, FLV and SWF loading - The picture/movie must always cover entire viewport, no exceptions. - The picture/movie must scale (relative) when the screen is resized. - The position of the picure/movie must be adjustable if bigger than fullscreen(top left, top center, top right, center left, center center, etc) in XML. - Image/movie must be preloaded when called upon in Flash (not before, use a percentage loading bar). - Image/movie must fade into place (on top of previous image). - No slowdown / memory leak after/during intensive usage. - Written en commented in English (AS 2.0 / AS 3.0). - Must be integrated in existing flash file (complete site: working except background). - IPR and ownership will be transferred to us. - Levels and layers on top of background are in Flash as well.