Hello Mike
I do not think "ap32_registers.inc" is a head file supplied by CodeWarrior tool. Please search it under your project folder.
In addition, what is the CodeWarrior version you are using?
To get it, please:
1)Start the IDE and click on Help | About Freescale(Metrowerks) CodeWarrior.
2)Click on Installed Products
3)Provide us all info displayed. Or you can save them in a txt file.
Best Regards
Fiona