In this video tutorial created by Apptorial Software Tutorials, we will go over the steps you are required to do each time you need to update your iWeb website. Since iWeb overwrites all previous files, iWeb SEO Tool needs to be run each time you update your website.
Simply publish your website to a folder in iWeb and open it back up in iWeb SEO Tool. Then, press the 'Re-Apply Saved Tags' button to apply all your saved tags. Your entire website will be updated and you can now publish your iWeb site to your server using iWeb SEO Tool's publishing features.