Restore Windows 7 from installation media
Sorry, jimderod, but restoring Windows 7 from Windows 8 is not an option. You didn't notice that if you had a previous version of Windows that is DOS-based, and have that version backed up on a version of Windows that you upgraded to (including Windows XP, which can be upgraded on a FAT32 partition), then you would uninstalled your upgraded version in order to use you previous version again.
For Windows 7, however, you need to restore it through the installation media, either from the retail DVD or your computer manufacturer. It is the only way!