The module is now officially supported on drupal.org. See the project page.
The release only support Ubercart 6.x branch, because I don't have anymore 5.x shop, and don't have extra time to work on a release I don't use.
If somebody want to backport it, I will be happy to commit it. Use the drupal issue queue for that.
The attached file is the old 5.x version that is completely different from the official version, I let it here for people that would need it for 5.x.