Swf OVER swf

I looked at this website: [U][COLOR=#cc6600]http://flywriterproductions.com/fotorama/gallery/[/COLOR][/U]
source swf: [U][COLOR=#cc6600]http://flywriterproductions.com/fot…ry/imagevue.swf[/COLOR][/U]

How did he get the main swf to center and not resize (when resizing browser/diff resolution), while having the background swf resize, and to have that top toolbar also stay in place (top left)and not resize when the browser is resized. Also the whole thing is in 1 swf. How is this achieved?

Thanks for any help. :beam: :beam: