The Protogo device I created won't boot my Mac.

If your Mac will not boot based on the profile you have used, you might try making a Basic profile instead.  While the included profiles use pre-loaded boot kits supplied by Apple they are not always up-to-date, the Mac OS X Basic profile makes a copy of the operating system installed on your Mac. Using this profile guarantees that the device created with TechTool Protogo will boot the Mac it is created on and any other Mac compatible with that operating system.