Hi garics,
I have the first and second level Open Focus tapes, but not the third. My impression of the way the tapes are organized, is that the first level introduces you to the method, and takes you to a preliminary depth of the Open Focus experience (I tend to think of it as a form of meditation).
The second level takes you much deeper, by involving the joints and all the inner organs of the body in the visualizations. There is also a more advanced visualization of space in terms of the galaxies and the universe - which makes it very profound and powerful. The second level also includes a tape which introduces the concept of being in Open Focus in everyday, normal activities, which is the ultimate objective of the technique.
The third level involves further application of the technique to everyday, normal activities, and specifically to sports such as tennis or golf, where the method is supposed to really enhance one's performance.
To get a more accurate and better understanding of the different levels, I would recommend calling Dr Fehmi's office in Princeton, and asking them. He and his wife are extremely warm and helpful, and so are his office staff. In fact, the first time I called his office, he happened to be there next to the phone, and I was so thrilled to speak to "the man" himself, that I signed up for the seminar, which turned out to be excellent! He or his wife will also reply to your questions by e-mail, so that is another way to contact them.
I hope this helps. Cheers.