In version 5.3 I was using the following code to build a linktree:

private void PopulateCuteEditorLinks()
{
        CuteEditor.ToolControl toolctrl = ceContent.ToolControls["LinkTree"];
        if (toolctrl != null)
        {
            CuteEditor.RichDropDownList dropdown = (CuteEditor.RichDropDownList)toolctrl.Control;
            dropdown.Items.Clear();
            dropdown.Items.Add("page1", "http://www.yahoo.com/");
            dropdown.Items.Add("page2", "http://www.yahoo.com/");
            dropdown.Items.Add("page3", "http://www.yahoo.com/");
            dropdown.Items.Add("page4", "http://www.yahoo.com/");
    }
}   

Why dosent this work anymore? Is it a bug?