I have tried and tried to update/upload my new numbers and such from my device to the VZW site. But it never gets there. What happens is everything that is on the site gets download back to my phone instead. Much I have deleted from my phone AND on the site MANY times.
Sorry, I have no idea on this one. I haven't used Backup Assistant since getting my Droid Eris. I also never activated Backup Assistant with the new account that I got with the Thunderbolt.
Hopefully someone else has more information.
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.