I am trying to follow your guide, but I have the below problem. I can't restore the image that I have downloaded. Whenever I try to scan the image for restore I get one of the following messages:

Unable to scan "imagename.dmg". (Invalid Argument) or Unable to scan "imagename.dmg". (Resource temporarily unavailable).

What is wrong. I have trying both with mounted and unmounted image but the result is the same. I am running Leopard 10.5.5 and the disk is MBR formated.

Any solution?