Because of Amazon Web Services’ new API rules, all requests need to be signed. The current version (as of this writing) of the Amazon Reloaded for WordPress plugin isn’t updated yet to accommodate for the change, and the author understandably doesn’t have time to update the plugin yet. Honestly, it’s going to take adding new options and security for storing Amazon WS account information and secret key, something the current version doesn’t handle yet.
For now, though, since I need the use of this plugin, I’ve hacked in changes that work. The “real” fix for this would be to add options for storing the keys in the database, of course. Thanks to Alan Capesius for the code snippet for signing the URL.
I’ve uploaded the PHP source file with the changes I’ve made. Keep in mind I did not change any of the credits nor the version number of the plugin, so replacing what you have will be overwritten when a new official version comes out and you choose to update. You will also need to apply to get your own Amazon AWS keys.
Thanks Nick Ohrn for a invaluable plugin!