Charge When Ship Made Easy is a free tool for Amazon Pro Merchants that makes order confirmation easy.
http://OglieOglie.com/ChargeWhenShipMadeEasy.htm

Here's how it works:

1. Start CWSMadeEasy
2. (Optional: set a cutoff time to confirm only orders received by a certain date/time)
3. Click "Confirm all outstanding orders"
4. You are done!

You can also optionally set a default carrier and shipping method, and pick a shipping date.

Endicia users are also in luck, since CWS Made Easy can automatically get tracking numbers and shipping information out of Endicia and plug them into CWS confirmations.

Limitations:
* Amazon Pro Merchants only
* All countries (US, UK, Canada, France, Germany, Japan)
* Mac version is available upon request

http://OglieOglie.com/ChargeWhenShipMadeEasy.htm