I believe I have found a solution to this issue with the Chapter 9 catalog.tag example. After doing some digging I first looked to
http://Java.Sun.com and downloaded the JavaServer Pages Specifications for 2.0 and looked up the some information on the Tag File directives which you will find in Part I of the Specifications document. You will find how to properly tag the directives of a Simple Tag Handler.
Next, if you are using the 5.0.X version of Tomcat, look to the JSP-Examples directory and you will find the "Display Products Example" which is where I take it the authors of the book got their example. You will find here the correct way to create the tag file. Hope this helps.