Good luck with the system. I've ruined two children on sleeping using every method available (Babywise, Ferber, stressed-out-Mommy that puts baby in bed with her, etc.). My conclusion is that where sleep is concerned, it's a crap shoot. I hope she starts sleeping for you soon! I know how it is to be sleep deprived all the time...

A MUCH more helpful book for baby's sleep is Health Sleep Habits, Happy Child. The most important thing I learned from Baby Wise was nap, eat, play; in that order.