Ive noticed that some 3rd party modules are not well documented.
*phew*... At least I know you aren't talking about mine !!! :-)
Just sheer laziness/arrogance if you ask me. And comments like, "read the source code to figure out what do to" doesn't cut it. In that respect it would generally be better for the 3rd party's to have left the modules on their own hard drives... :-p