Problem Creating Child Nodes

I am trying to dynamically create an xml file. I can make child nodes, but no grand-child nodes ( i dont know if thats proper terminology )

What I Have:

'-------------------------------------------------------
Set objDom = Server.CreateObject("Microsoft.XMLDOM")

Set objRoot = objDom.createElement("Articles")
objDom.appendChild objRoot

Set objChild1 = objDom.createElement("Article1")
objRoot.appendChild objChild1

Set objChild2 = objDom.createElement("Article2")
objRoot.appendChild objChild2

Set objChild3 = objDom.createElement("Article3")
objRoot.appendChild objChild3

Set objPI = objDom.createProcessingInstruction("xml","version='1.0'")

objDom.insertBefore objPI, objDom.childNodes(0)
objDom.Save "c:MyXMLDoc.xml"
'-------------------------------------------------------

What I would like to do, is have each article have nodes : Title, Score, Age

When i try, I get error: Cant have more the one top level element.