Topic: .swf files in gallery

hi there.

i have a .swf file, and im loading the gallery into/on top of this file.
this works nice, however..:

instead of jpeg-images in gallery, i use .swf files.
and i was hoping to round of the corners of the galleryimage and make the backgound shine through,  but the transparency i have in my gallery .swf files dont work when read through the autoviewer.

i.e if i load the same file in a higher level in flash, opacity is fine.

any way to work around this.
or does the gallery need to be opaque and square.?