The best information I can give. Everything worked fine with these Vista/XP Images until the release of 1.2.0. This is because XP and Vista were assumed to be Single Partition images meaning the way the files copied to the FOG Server was specified to be the imagepath name rather than the Windows 7 Style of <windowspathname as directory>/d1p?.img or <windowspathname as directory>/{rec,sys}.img.000
This is a known about issue and has been fixed in SVN Trunk of FOG. I’m sorry I didn’t see this post sooner.