Hi there,
You're right. There is no TOC or sample chapter on the Wrox site. I am also not sure whether they'll be posted there. I think so, but I'll check with Wrox.
In the mean time, you can take a look at this unofficial TOC at the Library of Congress:
http://www.loc.gov/catdir/toc/ecip068/2006003345.html
Basically, the TOC is the same for each chapter: App Overview, Design and Architecture, Code Explanation, Installation instructions and a walk through for building an extension for each application.
Note that the walk through is not in the book, but in the "Bonus Content" folder on the CD-ROM and in the code download for the book on this site.
Hope this helps,
Imar
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Imar Spaanjaars
Everyone is unique, except for me.