During this days needed to restore old .bkf file on Windows7/2008 Environment.
Inside this environment there's no more NT Backup utility.
Looking on internet I found relative Microsoft Hotfix that solve this problem.
You can download it from the above link.
After you will have installed it you will get the NT Backup restore utility available on you Windows 7/2008 R2 system.
I hope you'll find this information useful for your need
http://support.microsoft.com/?kbid=974674