Regarding Train component, view is lost when navigating to next train stop

Question

Hi,
I require a train component for my application. I have created a bounded taskFlow contianing 3 JSF pages with each page representing a trainStop.
I added train component to each of the pages as told in "Fusion Developer Guide" .
Now I add this taskFlowDefn.xml in my main.jspx as a region. The train is visible and working but the problem that I face is as follows:-
I am having 2 input fields in my 1st jsf page represented by the 1st stop in the train. If I enter something in the input text
and move on to another stop(which is also a different jsf page) and again go back to previous jsf page, the value in the input text gets cleared from the screen.
These input text are not bounded with View Object attributes. The JSFFs are desgined without binding.
How can I save/retain the view of the previous page , I mean how to retain the values on the page that were entered, as train component itself provides the
functionality of moving back and forth. Alll the 3 jsf pages and the main.jspx (which contains the bounded taskFlowDefinition as region) have backingBeanScope.
Please reply if you know wat I have missed or wat I need to do for this.
Thx in advacne
Tarun.

Answer 1

adf009, please read the post I posted the link to in my previous replay. The old code format tag don't work in the new forum!
Still the same error. The stack trace still points to it, you only need to read it carefulle
javax.faces.el.EvaluationException: java.lang.NullPointerException
    at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:51)
Caused by: java.lang.NullPointerException
    OrgDetails.showSelectedOrg(OrgDetails.java:2456)
The origin is
method.execute();
and the real reason is
MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:51);
What does it tell you?
Timo