The exercise demos that are available for the book are written for the PIC24H (28 pin SDIP part).
 They are easily configurable for both the PIC24F and the dsPIC33 28 pin SDIP parts.

 Here's how.
1. Remove in the source code (typically resident  before Main function ) the #include "p24hxxxx.h".  
2  Replace it with either #include "p33Fxxxx.h" for the dsPIC33 or #include "p24Fxxxx.h" for the PIC24F.
2. Once this is done, use MPLAB IDE "Configure Device" to select the exact part
3. Save,rebuild project, and run.