I recently migrated to a fresh install of 2.2 RC2a and realized this package was no longer adequate. I have included what I did to install this on a fresh copy of 2.2 RC2a. Does not include the instructions for pre RC2a, use v1.3 + v1.4 for older versions. Inlcudes the fix from version 1.4.

I also had a problem with the import into Worldship 2009. It seems that UPS doesn't allow the import to proceed if the customer_id in the xml export matches any previous shipments in your Worldship database. The attached ups_print_worldship_xml.php provides a workaround for this by concatenating the customer_id and order_id to make a unique shipping database entry. You may have to modify it to better suit your needs but it will work out of the box.

More...