According to an e-mail I recieved from Wiley, "Wrox Press Book Company was liquidated in the Spring and no longer exists. The books were sold to various companies. Wiley acquired only 34 of the over 350 books and the rights to the www.wrox.com website address. You'll find the complete list of books currently available from Wiley/Wrox Press at http://www.wrox.com/misc-pages/booklist.shtml "This book is not on that list. That means that the publisher no longer provides support for it, and it will probably never be updated.
I bought this book because it was one of the very few books available that covers using XML in Visual Basic. Altho not the easiest book to follow, it does contain a great deal of useful information. Unfortunately, both VB and XML are changing rapidly, and the information is getting out of date fast.
By the way, don't even bother sending in the registration card that comes with this book. Wiley didn't renew the business reply permit, so the card will just bounce back in the mail.