Documentation

I'm new here and must say that i am a little bit frustrated by the lack of documentation for your plugins. For example I just installed (and now, I am about to uninstall) the "Sitemaps and SEO - Wordpress MU Style" plugin. I expected the plugin to be pretty much the same as the original plugins (i.e. an options-page for SEO and not only posts in the sitemap) but I had to do the install and then do some reading in your support forum to learn how it differs from the original plugins. If a plugin is a "hacked" version of a already existing one, a description of the modifications would be great!