Welcome to MobileRead, fidjit
From your Kindle Users guide,
To permanently remove an item in the list from your account and Archived Items:
1. Locate the item you wish to delete in the "Your Orders" section. If you have a lot of content, you may need to use the Previous and Next links at the bottom to navigate through all of
your content.
2. Click on "Delete this title" button next to the title to permanently remove the title item from your account and Archived Items.
Note that after the title is removed from your account, you will no longer have access to re-download this title unless you re-purchase it. Existing copies of this title already on your device will not be removed unless you choose to delete them. For more information on removing content from your device please see Removing Kindle Content."
You might find this page useful also.
http://www.amazon.com/gp/help/custom...deId=200503360