After you have downloaded the plugin, unzip this file and you will see the plugin folder and a readme.txt file.
To install the plugin you have two choices, you can upload it via FTP or upload it within WordPress.
1. Upload via FTP:
To upload via FTP you will need an FTP client, FileZilla is a good program you can use for free. Unzip the WPAdCenter.zip file and connect to your website via FTP.
Navigate to the wp-content/plugins folder and upload the WP-AdCenter folder from your computer.
2. Upload via WordPress
To upload the plugin via WordPress, login to your WordPress admin panel and go to “Plugins” > “Add New” > “Upload” and upload the WPAdCenter.zip file.
Activate the Plugin
Click “Activate” underneath the WP AdCenter plugin, once this is done you will see a new menu item added to your side menu called “WP Ad Center”. The plugin is now installed and you can begin configuring it.