I have found the following script to work with UPS Worldship and OS Commerce. I already have Worldship setup to retrieve orders direct from the website using the Keyed Order option. Now I would like worldship to talk back to the website, then have a script that would update the order status and send an email to the customer. I am sure with just a little work we can make this work and roll it into a contribution that many others will find useful.

UPS Worldship script on OSC forum

Sean