Cannot find method

Hi,
I have added a method to an already existing Session Bean using Visual Age for Java. I generated the Deployed Code and this EJB is called from a Servlet. I found this working as desired using the WebSphere Test Environment in VAJ. But when i deploy the EJB to a Websphere Application Server and request the servlet .. I get an error message saying that the method I created newly is not found.
Its quite confusing to me to understand why the servlet and ejb that work in VAJ test environment do not work in WAS.
Please tell me if I am doing anything wrong or missing anything.
Any help/suggestion is appreciated.
Also please find a copy of the error message that I find.

Original Error:
Error Message: Server caught unhandled exception from servlet [PlaceOrder]: com.thermo.commerce.OrderProcess: method placeOrderPO(JJLjava/lang/String

I not found
Error Code: 500
Target Servlet: PlaceOrder
Error Stack:

--------------------------------------------------------------------------------
Root Error-1: com.thermo.commerce.OrderProcess: method placeOrderPO(JJLjava/lang/String

I not found
java.lang.NoSuchMethodError: com.thermo.commerce.OrderProcess: method placeOrderPO(JJLjava/lang/String

I not found
at com.thermo.commerce.PlaceOrderServlet.performTaskConcrete(PlaceOrderServlet.java:86)
at com.thermo.commerce.CommerceServlet.performTask(Compiled Code)
at com.thermo.commerce.PlaceOrderServlet.doGet(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at com.ibm.servlet.engine.webapp.StrictServletInstance.doService(Compiled Code)
at com.ibm.servlet.engine.webapp.StrictLifecycleServlet._service(Compiled Code)
at com.ibm.servlet.engine.webapp.IdleServletState.service(Compiled Code)
at com.ibm.servlet.engine.webapp.StrictLifecycleServlet.service(Compiled Code)
at com.ibm.servlet.engine.webapp.ServletInstance.service(Compiled Code)
at com.ibm.servlet.engine.webapp.ValidServletReferenceState.dispatch(Compiled Code)
at com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(Compiled Code)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(Compiled Code)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.dispatch(Compiled Code)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.forward(Compiled Code)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(Compiled Code)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(Compiled Code)
at com.ibm.servlet.engine.invocation.CacheableInvocationContext.invoke(Compiled Code)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(Compiled Code)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(Compiled Code)
at com.ibm.servlet.engine.oselistener.SQEventListenerImp$ServiceRunnable.run(Compiled Code)
at com.ibm.servlet.engine.oselistener.SQEventListenerImp.notifySQEvent(Compiled Code)
at com.ibm.servlet.engine.oselistener.serverqueue.SQEventSource.notifyEvent(Compiled Code)
at com.ibm.servlet.engine.oselistener.serverqueue.SQWrapperEventSource$SelectRunnable.notifyService(Compiled Code)
at com.ibm.servlet.engine.oselistener.serverqueue.SQWrapperEventSource$SelectRunnable.run(Compiled Code)
at com.ibm.servlet.engine.oselistener.outofproc.OutOfProcThread$CtlRunnable.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)

How are you calling the method- the easiest way would be to use VAJ's "Access Beans" functionality, that basically creates a facade type pattern with you EJBs-basically your access bean can hide much of the EJB's functionality from clients like servlets- but it allows you to expose what you want. That way you don't have to do any type of lookup using jndi.

Thanks Mathew,
I was not too familiar with VAJ. I figured out what the problem was, I did not have my updated client jar in WAS. Thats the reason the new method I added was not to be found.
Thanks
sakthi