Am I reading this right, you have windows and debian on the same pc, and on that pc you have fog installed and you want to ghost the windows partiton from the same pc that fog+debian is on? Maybe pulling your hard drive from the other pc, installing it in the pc with windows 7 on it, booting to debian (not windows) and learning how partimage works would be your best option here… You really need fog on a seperate PC than you are trying to pull a ghost from…