I did it for a about a month a while back. Just do one work out per day, but don't do Power Circuit and Leaner Legs in succession. I think I did it like this:
Power Circuit
10-10-10
All Step
Step & Intervals
Leaner Legs
Kickbox
Although, looking at that, I would probably switch one of the step days with the kickbox day. It's a great series, I really built up strength when I used it. Have fun!
anne