Stuck with php code / left sidebar

Hi guys,

I've spent hours looking at this & researching online but still can't understand how to make it work. I have downloaded a vertical scroll news announcement plugin/widget & have set it up in the dashboard to display 5 dummy testimonials to test. It mentions in the plugin page that I need to add:

To the template. However I have absolutely zero idea how or where to do this. I have tried adding inside header.php & index.php from the dashboard editor, but neither worked. Please, please can someone help - it's doing my head in! The site is:

http://writetothepoint.co.za

The announcement widget is listed as "Testimonials" in the left sidebar. Many thanks

Michael.