site builder password is pre fixed and u gotta change it.........
Follow this link:
http://box4.110mb.com/wizard/help/help/site-builder-license-update.htmInstead of adding new domain put in there the username and password (any password you choose, it don't have to be the same as for the 110mb CP). Click "Go - install my website". Don't worry - nothing will be replaced or deleted except new password.
After succesfull above operation you should login to Site Builder admin panel. BUT you have to type your new password manually, the prefilled one is no longer valid.