I was hired to make some changes to a site that includes several flash maps. I used CS3 to make updates to the swf files. Rather than reimport the .js I just changed the .swf file name in my html and uploaded the new swf and html page.
This process has worked fine.
I have recently upgraded to Flash CS4 and am trying to use the same process and now I get a white box in IE where there should be a .swf map.