The definition should be W = \int \phi phi' , ie the prime should be on the second \phi, not the first.
In equation (7.10) and the next two displayed equations, V should be replaced by JVJ.
In stage 2 of the algorithm, ci should be replaced by Jci on both occasions.
If you think you have found any other errors, please email B.W.Silverman@bristol.ac.uk or ramsay@psych.mcgill.ca