Locating iWeb Files
You can choose to publish a site to any folder you like, although the default is your Sites folder. Assuming that you publish to your Sites folder, when you open it, you’ll find an index.html file and a folder for each that you created in iWeb. Each site’s folder is named with the name you gave the site in iWeb. Even if you create only a single site, a folder is created for it.
If you published to your Sites folder, you also see a folder named images. This folder has nothing to do with iWeb, it’s created by Mac OS X with images for the default Personal Web Sharing feature (Personal Web Sharing allows you to turn your Mac into a Web server and share anything that is stored in the Sites folder as a Web site). Until iWeb published its index.html file into this folder, there is also a generic index.html file that says that a Web site is currently under construction. None of these elements appears if you publish to a folder other than your Sites folder.