Looking for maverick assistance

Hello,

I bought a book called "Mastering Apache Velocity" by Gradecki and Cole.

It involved downloading/extracting Maverick. The book stated that I should place the friendbook-jsp.war file into Tomcat's webapps directory plus moving log4j.jar and then startup Tomcat. Unfortunately, I get the following error in the Tomcat's log during startup... please help... Thank you in advance for anyone's help.

2004-01-24 07:58:26 StandardContext[/friendbook-jsp]: Servlet /friendbook-jsp threw load() exception
javax.servlet.ServletException: Error instantiating servlet class org.infohazard.maverick.Dispatcher
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:912)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3422)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:3623)
 at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)
 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
 at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)
 at org.apache.catalina.core.StandardHost.install(StandardHost.java:788)
 at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400)
 at org.apache.catalina.startup.HostConfig.run(HostConfig.java:851)
 at java.lang.Thread.run(Thread.java:536)
----- Root Cause -----
java.lang.NoClassDefFoundError: org/apache/log4j/Category
 at org.infohazard.maverick.Dispatcher.<clinit>(Dispatcher.java:141)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
 at java.lang.Class.newInstance0(Class.java:306)
 at java.lang.Class.newInstance(Class.java:259)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:903)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3422)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:3623)
 at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:821)
 at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
 at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
 at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:307)
 at org.apache.catalina.core.StandardHost.install(StandardHost.java:788)
 at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492)
 at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400)
 at org.apache.catalina.startup.HostConfig.run(HostConfig.java:851)
 at java.lang.Thread.run(Thread.java:536)

2004-01-24 07:58:26 StandardWrapper[/friendbook-jsp:invoker]: Loading container servlet invoker