I had this same issue on a Windows 7 desktop and from what I've seen the same would apply to Windows Server 2008. On Windows 7 and Windows 2008 by default the local administrator account is now disabled when joined to a domain. BESR fails to complete the restore anywhere is that account is disabled and will sit on those screens forever. I have my Windows 7 box sit on that screen for 24 hours and then gave up.
Because I didn't have the luxury of taking another backup of my source Windows 7 box with the administrator account enabled I booted to a LiveCD with a hard password reset tool. This tool when resetting the local admin password, also enabled the admin password. I rebooted and it jumped through that screen in couple of minutes.
Windows 7 and Windows 2008 both disable the local admin account when joined to a domain. I would check here first.