The Video below will show you how to replace a Sparkzio site on Amazon S3 that is already ranking or indexed.
- Make he changes to your Sparkzio site
 - Export The Site
 - Extract The Index file only to a place where it is easy to find
 - Login to Amazon s3
 - Locate the bucket and the folder that contains the site you want to change.
 - Upload the new index file in to same folder where the site you want to change is.
 - Delete the old Index file.