I was easily able to install and configure.
This may all be my use of Headway.
The plugin is displaying at a strange place on the page (it seems to have distorted a predefined wigitized area, and when activated I am unable to use my visual editor (it blacks it out).
I can live with the blackout as I can disable the plugin during editing, but can not live with it shuffling site around.
I really love the look and design of this timer and hope I can use it. :(