Open Blogger Layout
Click design in the top right corner, then select layout from the sidebar.
Add a Gadget
Select one of your Add a Gadget spots, where you want to add your Widget. The Blogger Gadget pop-up will appear.
Create HTML Gadget
Copy and paste this code into the Content box and save.
Save and View
Your Media Gallery has now been added to your Layout.
Click Save Arrangement, then click View Blog to set up the plugin on your live site.
View Blog to edit POWr Media Gallery
Click View Blog to go to the live, published Blogger site.
Look for the new Media Gallery Widget. You will see a blinking Edit Me sign, pointing to a Settings Icon .
Click the Settings Icon to open the POWr Editor and begin editing your Media Gallery Widget.