Convert .FLA file to .swi Swish Max

I have a fla version of a file. It's a Black bacground with stars twinkling on it. I need to Convert that to an swi file. I can edit in swish max but not in Flash. The file uses ActionScript 2.0 - It's currently 590 px by 300 Pixels. I need it to be 900 px by 600. I need the star effects duplicated EXACTLY in a .swi file. It's going to be used as a background for a website created in Swishmax. I've attached the swf file here. Need a fast turn around. Thanks, Sky