InfoPath Dev

Here is my code: for one of the levelspublic void level2_Changed(object sender, XmlEventArgs e) {XPathNavigator parent = e.Site.SelectSingleNode(".."); // Remove existing values firstList<XPathNavigator> nodesToDelete = new List<XPathNavigator>();foreach (XPathNavigator level3SourceNode in ...

I am going out of my mind trying to get this done.  I have searched google and have tried sooooooo many different ways, none of which I can seem to get working.  I have a 5 levels i need to cascade based on the previous level.  This is a browser enabled form.  I have a sharepoint list that has manager in column 1, employee in ...