To set up Amazon integration:

1. Login to Centova Cast as "admin" and enable Amazon integration on the "Settings" page (if it has not already been enabled there) by entering your Amazon Web Services access key ID.
   
   Note that this is not your referrer ID or any other token you might have obtained from Amazon -- it is your Amazon Web Services (AWS) access key ID.  No other value will work here.
   
2. Login to the stream for which you want to enable Amazon integration.
3. Click "Configure server", then on the "Start Page" tab, and enter your Amazon associate ID.
   

Any media added to your library after this point will include covers and buy-now links from Amazon if available.

You can also force an update (on the Playlists page, click "Update Media Library", and then when it finishes, click "Perform full library update") to pull in the Amazon data for existing tracks in your media library.

If you have performed the above steps but are still experiencing problems, please refer to:
CD covers and Buy Now links from Amazon® not appearing