FlickrShow WordPress Plugin.
Installing and working with the plugin. e.g.
Step 1: Upload the wp-flickrshow folder to the /wp-content/plugins/ folder.
Step 2: Add a folder to your wordpress root directory called “cache” and set the cache folders read/write permissions to full(chmod to 777). I use FileZilla to upload and set file permissions.
Step 3: Activate the “flickrshow” plugin under the admin menu->plugins menu.
Step 4: Under admin menu->Settings->FlickrShow Settings enter your Flickr Api Key.
Step 5: Add the shortcode to your page or add the Flickrshow widget to your sidebar.
For more complete instructions with screenshots: http://flickrshow.nrcstudios.info/?page_id=6