We've released the Amazon Link Engine and iTunes Link Engine plugins for WordPress, which automatically creates globalized and affiliated Amazon links on your WordPress site. All you'll need to do is download the plugin, then follow the instructions to sync it to your Geniuslink account after doing so.
1. Log into Wordpress siteadmin
2. From the menu select Appeareance
3. From the submenu select Editor
4. You should see this:
5. Select footer
6. Once it opens look for <?php wp_footer(); ?>
8. Click update file and you're all set!