Option #1 : Upload the theme via Wordpress admin.

Once you have uploaded the theme, activate your theme in Appearance > Themes > Manage Themes
http://codex.wordpress.org/Using_Themes

The plugins are used in the theme are listed below: WP PageNavi - Page navigation plugin
Download link: http://wordpress.org/extend/plugins/wp-pagenavi/

Contact Form 7 - Contact form for contact page
Download link: http://wordpress.org/extend/plugins/contact-form-7/

• Open WordPress admin panel and go to Plugins tab.
• Click Add New.
• From the top menu select Upload.
• Click Browse and select the plugin package. Usually the plugins provided with the WordPress theme could be found in the downloaded package. When you found the plugin click Open, then Upload
• When the upload procedure is done you need to activate the plugin. For activating use the Activate Plugin link.

Option # 2 : Upload the theme using quick-start package.

To make your WordPress look like our live demo please, follow the instructions bellow.
A quickstart is basically a fully functional and customized Wordpress package containing the default wordpress installation package, all extensions, images, plugins and choosen theme.

- We use Duplicator Wordpress plugin to backup website https://wordpress.org/plugins/duplicator/ - You just need to upload the content of 'xxxxx_installer' folder to your server and run 'installer.php' file, then follow instructions in the video below (starting from the 2nd minute).