Erin: do you preview workouts before you do them? I find that this helps a lot especially with cardio. I watch the entire workout (I chapter skip for weight workouts, but watch cardio the whole way through) and pretend I'm working along with it. I can then pick out moves that seem complicated, and pay more attention to what foot is where on what beat, counting out the 8-count as I watch the move, or even developing my own cues for moves (ie: a "triple around the step" cues better for me as a 'walk-walk-triple...triple' because it cues each step of the move).
When I actually do the workout, I usually get about 85%+ of the moves the first time through, and most of the rest of it after they have been repeated a couple of times. Whatever moves I still have trouble with, I will back chapter and repeat, counting out the 8-count (one move I had to do that with was the "power skaters" in BMax2: I kept exiting on the wrong side of the step until I made sure that the knee that is up on the 6 count is the same leg that exits).