The following FunnelWeb documentation is available:
"FunnelWeb User's Manual": Tutorial, Hints, Reference Manual.
"FunnelWeb Hacker's Manual": Notes on Design and Implementation.
Everyone involved with FunnelWeb should read the FunnelWeb User's Manual. It contains everything you need to know about how to use FunnelWeb. In fact, you are reading it now!
The FunnelWeb Hacker's Manual is for those who want to install, modify, fix, fiddle with, and generally hack the FunnelWeb C source code.
Both of these manuals are shipped with the FunnelWeb distribution kit, and should be available on your machine in the form of LaTeX text files. If you cannot find them, you can obtain them from the FunnelWeb FTP archive (see Section 5.11).