Oops. The srcdir element is already recursive. No need to specify directories that are part of the package namespace, the javac command will recurse through the source tree automatically. That's why the javac target was rebuilding everything: the source, without the "com" part of the package, didn't match anything in the destination dir, which did have the com in the package name.
That was written some time ago by a [still active] member. His overview of the way the engine works is mostly still the same so if you'd like then it's a good read :) Just make sure to use the wiki and forums for the technical how-to's
Yes, it seems that the "Getting Started" part is the only part that is out of date. However it did throw me for a loop. I have the SVN version now and it runs and everything. Much nicer. :D You may wish to add a note to the wiki that the PDF Getting Started is out of date and refer the reader to the wiki for download and testing.