Dr Joe has provided free instructions and a script for making your own guided meditation. The script can be found in the Appendix of the book starting on page 287.
However, if you would prefer the guided Meditations produced by Dr Joe, they can be purchased at the links below:
You Are the Placebo Meditation #1
You Are the Placebo Meditation #2
You Are the Placebo Meditation #1 & #2 Bundle