Hi Bobbi,
First off, All Step is not the benchmark for Cathe's step workouts. I can't believe they included this one with the Step for so long (I believe the Step now comes with Basic Step+Body Fusion). It's totally intimidating because it moves a warp speed! Once you get the hang of Cathe's step, it's doable, but definitely not for someone just starting out.
Most of Cathe's newer step workouts, including Step Blast, assume you have knowledge of some of her moves that were introduced in earlier workouts. Because of this, Cathe doesn't necessarily break down the moves because she assumes you know what a 'figure 8' already is. Step Blast is a bit easier to learn, IMO, because a lot of the moves from the warm up show up again in the 3 combos. IMO, the combos get progressively more complex. So if you wanted to try it, you could do the warm up and combo 1, then do combo 1 again, until you got it down (this is so easy to do because Cathe's DVD's are so well chaptered and have both mix and match features and workout blender). Then you could move on to combo 2 etc. One word of caution, Cathe's cueing doesn't seem up to it's usual level. There are a couple of times she's cueing as the move is being performed rather than before, which if you don't know the routine, means your standing there watching her.
Another option is to go a little retro and get the Cardio Hits DVD with Step Fit, Step Works, and Power Max on it. In these workouts she introduces the moves that show up over and over again in her later workouts. These are all great workouts!
As Cathe says, pause and rewind will be your friends, as you're trying to learn her choreography. But once you get it down, her workouts are a blast!