installing Xerces on osx

[Ric Luper]

I m using this tutorial below to learn about parsers

http://www.cafeconleche.org/books/xmljava/chapters/ch06s02.html

Im using OSX 1.3 and have placed the downloaded xerces file

Xerces-J-bin.2.5.0.zip

into

c:/Library/Java/Extensions

the classpath is null

I get the error

org.xml.sax.SAXException: System property org.xml.sax.driver not specified

what can I do?

should I change the classpath to point to something in the xerces-2_5_0 folder?