start with your first listed error. you need to import or otherwise supply the ImageData class to the file that's causing your first error message.
It's funny. I checked the code from the book, it does not have it imported, but it still works. When I complete the code without the import, it works.
When I do add the import (which is the first thing I did when the errors were thrown) while building the code, it removes that error, but the same 1120's are there. I checked the properties of the components to make sure they are runtime, and also the properties of the actionscript is runtime, so what is it?
All of the more complex examples in the book are throwing these errors while building the code. The problem is, how do I check my code while creating it... That's why when I found this post "http://forums.adobe.com/message/2844566#2844566" I replied.
What folder is 'com.foundastionAS3.ch12' located in? By default, the current working directory (.) is in your FLA's classpath. In the finished project, is the com folder next to the FLA file? If not, can you check the FLA's ActionScript settings to see if the path to the com folder has been added to the FLA's classpath?