If using svBuilder-Pro to create your gallery, then when you click 'Save' on the 'Publish' screen, the output is like a self-contained web site in a folder.
Inside the folder should be the following:
index.html (index page file)
gallery.xml (XML file listing images in gallery)
thumbs (thumbnail images folder)
images (images folder)
svcore (SimpleViewer core folder)
If you upload this folder to your web server maintaining the folder structure, you should be able to load the gallery's index page into your browser to display the gallery.
The embed code is used only if you want to embed the gallery into an existing page alongside other content.
If you are still experiencing difficulties, please post a URL to the gallery you are having trouble with and we can take a look and help further.
SimpleViewer Support Team