SAX2

I’m new to parsing .xml files. I’ve downloaded SAX2, Oracle Parser v2, and
Aelfred but can’t seem to compile and/or
able to read any files in without err.
First of all, is there a proper way in
installing these parsers. I extracted
each in adirectory and set CLASSPATH to
point to each .jar file. Specifically,
when I try and declare a SAXParser saxp =
new SAXParser() object, like many samples
shown, I get a classnotfound error. Any
help in getting me started would be great!
Thanks,
Mark J