Here's the ongoing thread on exercise:
http://www.3fatchicks.com/forum/idea...-exercise.html
This diet is extremely low calorie, so if you add exercise in you HAVE to add in more fuel (an extra packet within 1/2 hour of exercise, and for some also a 1/2 restricted before). Adding cardio and strength training isn't going to speed your losses - if you want to exercise, do it for the fitness/scuplting. But be sure to add the extras that will help your muscles recover properly and not retain water.