The embedding code required to embed an AutoViewer gallery in a web page can be found here.
If, within a Joomla installation, you are unsure where your gallery files should be uploaded to, then you can upload the entire gallery folder to your web server (it does not matter where you upload it to as long as you know where it is) and embed the gallery using an <iframe> (using the gallery's 'index.html' page as the 'src' attribute of the <iframe>), e.g.:
<iframe src="http://www.example.com/gallery/index.html" width="800" height="600" frameborder="0" scrolling="no"></iframe>
You may need to do the following to allow <iframe> tags to be used:
Go to the 'Site' menu and select 'User Manager'.
Click on your user name.
In the 'Parameters' control panel, for the 'User Editor' select 'Editor - No Editor'.
'Apply' or 'Save' this change.
SimpleViewer Support Team.