Right-click on the toolbar and select "Customize" from the right-click menu.
Drag the IE Tab Extension to your browser button menu.
Click the Button for the IE Tab extension.
Client Scripting
Scripting must be enabled on your browser. To turn on scripting, select "Internet Options" within the "Tools" menu. Then click on the "Security" tab. Increase the security level or click "Custom Level" and enable "Active Scripting".