I don’t know much about the sector by sector part. I just do the full image, but I am using Acronis TI 2010. One boot disk should work for all. Acronis should create the boot disk. If you are using the paid version you can download the ISO using your Acronis account. They also have an excellent forum. Do a little searching there and you shiuld find the answers you need. There was a person there Grover and there was a link to some helpful stuff he had posted. I also make my images from the rescue disk. That way nothing updates or causes problems running in background. Basically the rescue disk is Linux on the disk and it loads like a temp file and runs there without the Windows actually running.
Joe
