INSTALLATION:

1) Download and enable the Oauth module (http://drupal.org/project/oauth).

2) Place the FlickrAPI module directory in your modules folder (this will
   usually be "sites/all/modules/").

3) Download the phpFlickr library from https://github.com/dan-coulter/phpflickr,
   rename it to 'phpFlickr', and place it in your libraries folder. This should
   usually result in sites/all/libraries/phpFlickr.

3) Enable the module.

4) Go to admin/config/media/flickrapi

5) Enter your API Key and optionally your API Shared Secret. See
   http://www.flickr.com/services/api to register for a key.

6) After saving, the form will send you to Flickr.com to authenticate
   your website using OAuth. You will have 'read' permissions by default.

7) More permissions (write/delete) or disabling caching can be set using the
   the Advanced Settings. Changing permissions afterwards forces you to
   re-authenticate.