Jesse ovar at the Art of Fitness has recently released a couple training programs...
Six Week Walking Program – Transition to Running:
http://tao-fit.com/six-week-walking-program-%E2%80%93-transition-to-running
Twelve Week Running Program For An Injury Free Barefoot/Minimalist Transition:
http://tao-fit.com/twelve-week-running-program-for-an-injury-free-barefootminimalist-transition