If a family tree was created with Family Tree Builder, only you will be able to edit it in the Family Tree Builder program. You can publish the tree to your online family site, but it will be read-only there, which means that the family tree will be displayed in its full glory, but it cannot be edited online. We are currently developing the new system that will allow Family Tree Builder trees to be editable online as well, by you or by other family members that you designate.