WordPress.org

Simple Amazon S3 Upload Form can be installed automatically via the Plugins tab in your blog administration panel.

For manual install

- Download plugin and place in 'wp-content/plugins' folder.
- Activate plugin by clicking on "Plugins" on the main administration menu, click on "Installed", find the "Simple Amazon S3 Upload Form" plugin, and       
  "Activate.

CONFIGURATION :

- Click on "Settings" on the main administration menu.
- Fill in your Amazon S3 Access Key, Secret Key (will remain hidden), and choose a Bucket Name from the drop-down list for admin uploads and user-facing uploads.
- Click "Save Changes"


UPLOADING :

- Click on "Media" on the main administration menu.
- Click on "S3 Upload Form".
- Browse for your file, and click upload (will be adding a progress bar later). 
- Once uploaded, you will receive a confirmation message.  If there is a problem, an error message will appear.
- An upload form can be placed in posts and pages by placing [s3form] into your post or page.
- An S3 form can be added to your sidebar by navigating to the "Widgets" section of the WP admin, and dragging the Simple Amazon S3 Upload Form to a specific widget area.

BROWSING FILES :

- Click on "Media" on the main administration menu.
- Click on "S3 Bucket Contents".
- Filenames will be evident, and simply click "Download File" to download each individual file within your bucket.

- I will eventually be paginating the files.