Hi
Just to let you know I used to always swear by ghost due to the speed of being able to boot, load ghost and do a full drive backup in minutes, Windows 7 has been a challenge to do the same. After you had the bootmgr issue, so did I so tried all of the above with WinPE and other similar and although works fine was just too slow.
So after a few attempts it end up being quite simple. Using GHOST 11.5 to backup a 10gig OS drive (pre loaded with apps)
Ghost -split=2000
it does not work unless I split the image file but when I do its worked 100%, back to the old fast and faithful.
Hope this may help.