WordPress.org

1. Upload 'jp_get_rss_feed_items.zip' through the WordPress interface (http://www.yourblogurl.com/wp-admin/plugin-install.php?tab=upload), or unzip the archive and place the PHP file 'jp_get_rss_feed_items.php' in your wp-content/plugins folder.

2. Activate the plugin through the 'Plugins' menu in WordPress

3. Place <?php jp_get_rss_feed_items("RSS feed URL", number_of_items); ?> in your theme where you want the list to appear, where

   a. "RSS feed URL" is the full URL of the feed, and

   b. number_of_items is the number of items you want to return. Default is last 5 items (leave blank for last five items)

You may also want to wrap the plugin calls in a function_exists check.