http:BL WordPress Plugin allows you to verify IP addresses of clients connecting to your blog against the Project Honey Pot database.
Yes, it does. If you don't want to give your bloggers an access to the
plugin's configuration page, you have to modify the source code slightly. Find
a line containing plugins.php and change it to wpmu-admin.php. It should
work fine. If it does not, do not hesitate to inform me about it or provide
your own patch.
Of course there is. Visit author's website in order to find his e-mail address and Jabber ID.