There is no Mac compatible version of Timeline Maker, however, it can be run on a Mac with Windows emulation.

Since Mac cannot run Timeline Maker directly, there is a workaround for Mac users if they have Windows emulation software (software on mac that runs Windows for PC users).

The good folks at Paralells are an example:

When emulation software is in place on the Mac, and Windows XP (or greater) has been installed, then you can install programs that are for PC, such as Timeline Maker Pro.