I also did a Zuzana workout from Bodyrock (I love bodyrock). It's called "Fit Ass Exercise." If you click the link it will take you to the web page with all the info.
My legs are so tired. It felt so good to stretch them out! It was 100 jump squats and then a step up onto a chair. Yeah. Phew! I completed it in 23:34! If you try this workout, let me know what your time is!