InfoPath Dev

I have created an addin using VSTO project for Infopath Addin ,
this produces the CustomTaskpane.
have a text box in the usercontrol , and I want to have infopath access that text box every time the context changes:

so , In my infopath form template I have :

public void FormEvents_ContextChanged(object sender, ContextChangedEventArgs e)

{

MessageBox.Show("Context changed : " + e.Context.NodeType+" "+e.Context.Name );

}


the html taskpane is taskpanes[0], that I know , because , I can hide it by code. taskpanes[0].visible
But which is the collection of the CustomTaskpanes ??
I do not know how to access the addin taskpane and the text box in it ?

Try incrementing the index number until yours shows up. I'm pretty sure it's the same collection of panes, but I don't remember the number they use for the custom pane.

can anyone help me how to create an infopath addin using VSTO 2005 SE?? articl?? blog?? anything!

 thanks in advance!