How can I install dummy content?
To use this feature go through Tools -> Import and click on “WordPress”.
Now you can choose the file included in the main zip file under the folder “dummy content” called “Eruption dummy content.xml” and click “Upload file and Import”. It doesn’t contain sidebar widgets and footer widgets. After importing sample content you still have to configure the theme and create some things like footer and sidebars manually.
More info on http://codex.wordpress.org/Importing_Content