I have downloaded the source, using the download version and cvs. I am unable to build and I get 8 errors:
1) ApplicationEnhancer/APEManagerPrefPane.h: No such file or directory
2) cannot find protocol declaration for 'APEManagerPrefPane'
3) ApplicationEnhancer/ApplicationEnhancer.h: No such file or directory (3 times)
4) 'apeprintf' was not declared in this scope (3 times)
I am using a MacTel and I am not sure if these files are downloaded elsewhere or if they are included in MacOS X for the G5 processor.
You need the Application Enhancer SDK, which is available here: http://unsanity.com/haxies/ape/sdk
However, the APE SDK does not yet support Intel machines, so you will not be able to use PA on an Intel mac.
OK, I guess I will have to wait.