Step 1: Generate a Widget on SeeClickFix
To create a widget, go here. Then, select the widget type and follow the steps. Finally, copy your newly created widget code.
Step 2: Create the Gadget in Blogger
First, click the "Layout" link from the drop down menu on the dashboard below the blog you would like to customize. The select the "Add a Gadget" link on a section of your layout to bring up the "Add a Gadget" popup window. In the popup window, click on the plus sign. Enter a title for the widget and paste the widget code in the "Content" section of the form. Save the changes.