i have my own personal notes on what things are BUT the easiest way is to get a cab that someone has already put together. for example my transparent bottom curtain cab found
HERE.
use winCE cab manager to open cab file and see contents. if you open my transparent bottom curtain cab you would see that it contains the 511c6915_manila, so you know thats the one you need to edit.
you can do this for anything you want to edit. find the cab and open it. for larger packages you can extract the ENTIRE folder and browse through all the manila from the cab file.