Lost Horizontal Scrolling Announcement with upgrade

Hi, I'm using Atahualpa theme for my www.BlueOrbTravel.com website and really love it. My WP and Atahualpa versions were automatically upgraded recently and I lost the Horizontal Scrolling Announcement (Gopi plugin) that appeared at the very top of all my pages and posts. Could you tell me exactly where to insert the short code <?php announcement(); ?> (as instructed by the plugin) into the editor to restore this feature, if it is still possible. Or perhaps there is a new way I have to insert it. Thanks in advance for your assistance.