Cincimom-- youveonly been running one year??
take this for what its worth, but i think you might be better off with more of a beginner marathon training program... less mileage, more gradual buildup... the intermediate programs assume this is not your first marathon, and hence start you out out 15+ miles or longer for long runs.... just 2 cents coming from a very educated and experienced runner

do you normally run 45-50 + mile weeks?? it seems you are jumping right in to one and a sure fire way to get an overuse injury...... also, *they* recommend a year of solid, cinsistent running BEFORE you start to TRAIN for marathon... im not trying to detere you.... i KNOW YOU CAN DO IT!!

but i think you need to tak a slighty gentler approach.... am i overstepping my bounds here? The intermediate programs with speed with and mile repeats and tempo runs etc, are for runners with a time goal, your first marathon should really be just about finishing