Answer

The module Nodewords facilitates easy management of meta data on Drupal websites.

To set-up meta data for the home page note it's done via the URL path of admin/nodewords/meta-tags/frontpage and not by editing the fields within the content (node) that has been used as the home page.

Using the Drupal menu navigate as follows:

Administer -> Meta tags -> Default and specific meta tags -> Front Page