Change blogger template without deleting your widgets
Whenever we try changing our blog’s template to new one we think that all the widgets are going to delete so we change our mind.
But there is a way to change blogger template without deleting these widgets.
1. Create new blog and upload your new template to it. This will be your test blog.
2. On your Dashboard go to the Layout of your old blog (i.e whose widgets you want to save) –> Edit HTML –> search for: and copy all widget code between to (sidebar’s).
http://strongindustriescorp.com/change-blogger-template-without-deleting-your-widgets/