Lag i XML

Jeg har et xml skema der ser sådan her ud:

<?xml version="1.0" encoding="utf-8"?>
<AuctionInfos xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.ww.se/sdfs/">
  <auction>
    <Channel>Fixed</Channel>
    <LiveAuctionID>454</LiveAuctionID>
    <Visits>20</Visits>
    </ImgList>
    <PromotionFlags>HomePage Highlight ShowCase</PromotionFlags>
    <StartDate>2011-10-04T10:24:00+02:00</StartDate>
    <EndDate>2011-10-07T10:24:00+02:00</EndDate>
    </auction>
  <Closed>false</Closed>
  <Bids />
</AuctionInfos>

Har en kode der ser sådan her ud:

    strURL    = "https://sfsdf.seses.se"

    Set objXMLhttp = Server.CreateObject("MSXML2.ServerXMLHTTP")
    objXMLhttp.Open "GET", strURL
    objXMLhttp.Send
    strReturn    = objXMLhttp.responseText
    Set objXMLhttp    = Nothing
    Set objXMLdoc    = Server.CreateObject( "MSXML2.DOMDocument.4.0" )
    objXMLdoc.async    = false
    objXMLdoc.loadXML(strReturn)

    if objXMLdoc.hasChildNodes then
        set rootElement = objXMLdoc.documentElement
        for each childNode in rootElement.childNodes
            if ( childNode.baseName = "auction" ) then
                auction = childNode.text
            end if
        next
    else
        Response.Write "error"
    end if



Hvordan kommer jeg ned og for fat i det data der ligger under auction. Er f.eks. kun interesseret i værdien StartDate ?