The following steps will show you how to install the BackLinks.com plugin to your WordPress blog.
Download plugin and unpack it into your /wp-content/plugins/ folder.
Activate the BackLinks.com plugin in the Plugins section of the WordPress Admin panel.
Enter your BackLinks Key (WordPress Admin->Plugins->BackLinks Configuration).
Example:
Add the following code into Sidebar template of your WordPress theme (WordPress Admin->Presentation->Theme editor->Sidebar). Note: The following PHP code will not work when added thru a textwidget. Please add the code directly to the sidebar menu.