I got this below from a post probably of about 3 years ago. I can't recall who the original poster was to give them credit, but I do think this is a good one. HTH!
WEEK 1
Sunday rest or pilates/yoga/stretch
Monday cardio, back, legs, abs Power Circuit
Tuesday cardio, chest Step & Intervals
Wednesday legs, abs Leaner Legs
Thursday cardio, shoulders, abs All Step
Friday cardio, biceps, abs Kickbox
Saturday cardio, triceps 10-10-10
WEEK 2
Sunday rest or pilates/yoga/stretch
Monday cardio, back, legs, abs Power Circuit
Tuesday cardio, chest Step & Intervals
Wednesday legs, abs Leaner Legs
Thursday cardio, shoulders, abs All Step
Friday cardio, biceps, abs Kickbox
Saturday cardio, triceps 10-10-10
WEEK 3
Sunday rest or pilates/yoga/stretch
Monday cardio, back, legs, abs Power Circuit
Tuesday cardio, chest Step & Intervals
Wednesday legs, abs Leaner Legs
Thursday cardio, shoulders, abs All Step
Friday cardio, biceps, abs Kickbox
Saturday cardio, triceps 10-10-10
WEEK 4
Sunday rest or pilates/yoga/stretch
Monday cardio, back, legs, abs Power Circuit
Tuesday cardio, chest Step & Intervals
Wednesday legs, abs Leaner Legs
Thursday cardio, shoulders, abs All Step
Friday cardio, biceps, abs Kickbox
Saturday cardio, triceps 10-10-10