Tree Control View Object in Silverlight Automation

I just started working on the silverlight application automation using QTP 11.0.

On the successful installation and with the required add-ins, I am able to identify the silverlight objects such as window(SlvWindow), Editbox(SlvEdit), Button(Slvbutton) and so on.,

But in our application, in a particular page,we have a tree control(Slv tree view) view which is identified just as slvobject wherever we spy in that page and nothing is getting recorded in QTP when we perform any operations in the tree control view.

Please let me know if any of you faced the above issue and the possible resolutions if available.

Example of Operation performed in tree control view is Add Root/child menu ,edit and delete Root/Child menu.

Note : Following are the add-ins and application information,

Add-Ins Used

1) Web 2) .NET 3) Activex 4) WPF->Silverlight

Application version

1) Silvelight Version - 3.0

Thanks!