If you start from beginning for a complete installation of the demo site on your server please refer to installing the quick start package. Else choose this option if you already have your site created or have at least made changes to the default Joomla installation and want to replace a new theme onto your site.
Quick start package is standard installation of Joomla you can easy make a demo site in some steps.
The following is our tutorial for installing Quick Start package on a localhost server using Joomla 1.7.
STEP 1: Download and extract quickstart installation file
Download the quickstart package you want to use from the our download area. To navigate to the download area please loged in first then go to Membership area then select your template that you wanna download.
Next you need to navigate to the folder that you extracted your package to. I will install it on localhost so i will put it in a folder that follow with url: http://localhost/ot-nitrolight/