How to customize template
Before Editing your template get backup of your template . you will see a option at the top right corner backup or restore. and download your template.
Also see how to get backup of post of blog
Step 1: Now search for
step2:just add the following code right before closing </b:skin>
go to layout and click Add a Gadget choose label and Set Display to Cloud and save the gadget and save arrangement.visit your blog and you can see you beautiful labels.