How to install the demo content

Hello Stan ! 
To install the theme with demo content, you can download the Quickstart package and use it to install. 
Please find here for the document guide on how to install theme: http://cmspioneer.com/designwall/guide/quick-start-installation/
If you still face the issue, you can send me your hosting (via private answer), we will help you install the theme.
Hope this helps !