This is my last message to this thread. Please use http://drupal.org/project/uc_addresses for bug reports and feature requests. Generic comments can be placed in http://www.ubercart.org/contrib/4872 unless there's a better location I don't know about.

I've released version 5.x-1.0-rc1. It contains a lot of bug fixes and enhancements over the version last released here. There have been no changes to the database tables. Please try it out and submit bug reports on drupal.org. Thanks.