I should also add to my comment above that I've never had occasion to restore my computer from the ATI 11 image. So I can't absolutely guarantee its effectiveness.
However, David, if you want to be belt-and-braces about this, are you aware that Windows 7 includes its own system imaging function? I'm not sure whether it's available in all versions of W7, but I certainly have it in my Home Premium.
You can find it in Control Panel>System and Security>Backup and Restore.