Thanks for jumping in whs. I understand how Macrium is supposed to work.
I can find the external drive, but no folders created in Windows 7 show up. There are 3 folders created by Macrium on XP machines, but when clicking on the + icon or double clicking they don't open. The XP machines can't open the folders either. I had to put the image file in the root of the drive to restore with XP, but that does not work with Windows 7.
I took a look at the security permissions on the folders but didn't really know what I was looking for. Would they carry over to a Linux disk?