Animation as Flash - Texture problems

I want to convert an animation into a .swf flash file. Therefore I use the following script at
I found out that my textures are lost when converting. I can only use flat, shaded etc. I want to know if it is a general fact, that flash files won’t overtake textures or is it just the script? Is there a way to export an animation into a flash file (swf) but with all the textures I used for the object in Blender. Thanks