I dont think you'll find it's just one doc, it's a set of directories containing .c and .h files, they're text based (not DOS bastardised text format mind you
) but not a .doc for Word - The kernel is written in the C programming language, and compiling it to be able to run the binary version is a bit complicated
I got an 'installation sources' cd with my PowerPack, I guess they arent the kernel sources then