ItsNatDocument itsNatDoc = null;
ItsNatComponentManager componentMgr = itsNatDoc.getItsNatComponentManager();
ItsNatFreeTree treeComp = (ItsNatFreeTree)componentMgr.createItsNatComponentById("compId","freeTree",null);
new FreeTreeDecorator(treeComp).bind();
DefaultTreeModel dataModel = (DefaultTreeModel)treeComp.getTreeModel();
DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode("Grey�s Anatomy");
dataModel.setRoot(rootNode);