Suggested Blocks
Harbinger uses most of the areas of the Elemental theme with which you are probably familiar. Exceptions are one redundant area in the footer and the search box in the header.
The footer doesn't contain any copyright or login function. Instead you can use these blocks which Harbinger was built for:
Tallacmans Copyright block. Tallacmans Tasty Templates which extend the theme page templates. Login/Logout Link block available in the marketplace for free. Tallacmans Responsive Spacer which augments the built-in classes. This block which I created to make this theme easier to work, can be used instead of the set classes. Additionally, it is easy to use for any block or area.