Unzip the file that you download and open it in a text editing program. Copy the code, and replace your current blogger template with it. Or instead of opening up the file, just upload it at Blogger.com. Read detailed installation instructions here.
All downloads are FREE to try and use with no watermark and no time limit. The free trial contains a fully functional template, however major graphics (header, background) are minimal or blurred. To get the complete graphical template shown in the screenshot, purchase it for as little as $10 through PayPal. Read more.
I created the topheader on this site with some of the thousands of filters available. It is the best set of plugins ever!