The Deep Zoom Composer has been updated, which comes with major new features outside of the usual bug, performance, and stability changes include Panoramic Stitching and PhotoZoom upload. Now you can store and serve Deep Zoom photo albums you create on PhotoZoom, or upload photos from the Deep Zoom Composer.
To help make uploading and sharing your creations with others easy, Deep Zoom Composer nicely integrates with the Live Labs PhotoZoom service: http://photozoom.mslivelabs.com. When you choose to Export, the default selection will be PhotoZoom.
You can use your Live ID to sign-in. Once you have signed in, you can specify an album name, choose a cover image, and just upload. Once you have uploaded your contents, you will see a dialog that allows you to browse your newly created album in your browser.
Panoramic Stitching: Deep Zoom Composer now allows you to stitch similar images inside the application using some cool technology from Microsoft Research's Interactive Visual Group. Take a series of photos that share similar characteristics, right click on them, and select “Create panoramic photo”.