Again, it appears that although planned, this book has not yet been published.

Publisher's blurb: "If you think The Legacy of Zorro is cool, wait until you see The World of Zorro Adventure Game and Resource Book! It's packed with many more options, including rules for creating your own character, more equipment and weapons to choose from, and a ton of information about the world of Zorro, including Spanish California. The World of Zorro uses the Fuzion System, an advanced version of Instant Fuzion, with new rules and more options. And characters from The Legacy of Zorro are compatible with The World of Zorro. We show you how to use them in the book."

More when I get hold of a copy!

Book Details:
Authors: Mark Arsenault, Bruce Baugh, et al.
Publishers' Reference: GRG3010
ISBN: 1-890305-29-4
Hardback, 114 pages
Date: Not yet released