Server side NoClassDefFoundError

Hello,

I have an existing server/client application that uses kXML and I'm
converting over to kSOAP.  I can build my server side code using the kSOAP
libraries, but hit the servlet I get this error when I try to instantiate my
object:

here's the line its blowing up at:
SOAPLoginMessageBean loginMessage = new SOAPLoginMessageBean();

Here's the exception:
java.lang.NoClassDefFoundError: org/kobjects/serialization/KvmSerializable
	at java.lang.ClassLoader.defineClass0(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
	at
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLo
ader.java:1679)
	at
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.jav
a:968)
	at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1409)
	at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1289)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)

I'm assuming that the application server is throwing the error because it
needs to know about the kSOAP classes (?).  Do I need to put the .jar in my
app server?  Where would it go?  I'm using Tomcat.

brian