Tomcat 3.2 Installation Problems

[Melissa Matthews]

I have downloaded Tomcat 3.2.5 (also tried 3.2.6) on Windows 2000 (also
running Apache).

When I try to run Tomcat I get the following:

FATAL: configuration error
java.lang.SecurityException: sealing violation
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:120)
        at
javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:92)
        at org.apache.tomcat.util.xml.XmlMapper.readXml(XmlMapper.java:210)
        at org.apache.tomcat.startup.Tomcat.execute(Tomcat.java:189)
        at org.apache.tomcat.startup.Tomcat.main(Tomcat.java:237)

Prior to this I got an error: java.lang.NoClassDefFoundError:
javax/xml/parsers/SAXParserFactory, so I downloaded the xml parser from sun.

Any suggestions?  Thanks in advance.