DharmaTech has taken it back up and posted a D6 version which is working great for me, only error left is that it is not copying phone number. Is yours copying phone number?
Please see the attached D6 version at the top of the page.
I don't have shippable products (now), so I had to edit the module to use billing address instead of delivery. It would be helpful for the module to copy both addresses, if difference, or just one if the other doesn't exist.