I just started doing the workouts at my campus's gym, and it's working out great. She says not to rest in-between the exercises which can sometimes be a problem when someone else is on a machine that you need. My biggest problem was just getting myself there... I get kind of self-conscious when I exercise in front of other people. If that's your problem, this is what I did:
My first step was mentally preparing myself... I knew that I was going to be trying new things in front of people I didn't know (or worse, people I DID know) and the thing I kept saying to myself was "I'm going to look silly at first, but I won't look so silly 12 weeks from now".
Next, I copied the exercises from the book onto a piece of paper in the order that they go in and drew simple stick figures of the pictures to remind myself what they were doing (and wrote footnotes on what to do and what not to do). It's much easier carrying around a piece of paper than it is a book.
Then I just went out and did it! I was all over the place, sometimes standing in front of all the machines, trying to figure out which one was the one I was looking for. I even went up to one of the people who worked there and showed her a stick figure drawing, and asked if she knew where that machine was. She showed me the way.
I am learning where the machines are, and am referring to my papers less and less. There is some time commitment in making the papers, but a small price for those pounds lost, right?