You can add the widgets to your website via the DESIGN > Add Social Widgets options
There are various places thoughout the template you can add the widgets, by selecting the required dropdown option.
There are Shopping related widgets, Social / Add-this widgets, Search boxes and Breadcrumbs available.
You can add your own widget code to an area. Edit Custom Widget will open TINYMCE editors for rich formatting or you can use the HTML button to paste in code.