VB.NET ~ Need help parsing XML loaded in richtextbox (loaded from URL)

    Imports mshtml
     Imports System.Text
     Imports System.Net
     Imports System.Xml
     Imports System.IO
     Imports System.Xml.XPath
     
     Public Class Scraper
     
         Private Sub Scraper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
         End Sub
     
         Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
             '  Note: This example uses two Chilkat products: Chilkat HTTP
             '  and Chilkat HTML-to-XML.  The "Chilkat Bundle" can be licensed
             '  at a price that is less than purchasing each product individually.
             '  The "Chilkat Bundle" provides licenses to all existing  Chilkat components.  Also, new-version upgrades are always free.
     
             Dim http As New Chilkat.Http()
     
             '  Any string argument automatically begins the 30-day trial.
             Dim success As Boolean
             success = http.UnlockComponent("30-day trial")
             If (success <> True) Then
                 TextBox1.Text = TextBox1.Text & http.LastErrorText & vbCrLf
                 Exit Sub
             End If
     
             Dim html As String
             html = http.QuickGetStr("http://www.quiltingboard.com/register.php")
             If (html = vbNullString) Then
                 TextBox1.Text = TextBox1.Text & http.LastErrorText & vbCrLf
                 Exit Sub
             End If
     
             Dim htmlToXml As New Chilkat.HtmlToXml()
     
             '  Any string argument automatically begins the 30-day trial.
             success = htmlToXml.UnlockComponent("30-day trial")
             If (success <> True) Then
                 TextBox1.Text = TextBox1.Text & htmlToXml.LastErrorText & vbCrLf
                 Exit Sub
             End If
     
             '  Indicate the charset of the output XML we'll want.
             htmlToXml.XmlCharset = "utf-8"
     
             '  Set the HTML:
             htmlToXml.Html = html
     
             '  Convert to XML:
             Dim xml As String
             xml = htmlToXml.ToXml()
     
             '  Save the XML to a file.
             '  Make sure your charset here matches the charset
             '  used for the XmlCharset property.
             htmlToXml.WriteStringToFile(xml, "out.xml", "utf-8")
     
             RichTextBox1.Text = xml
         End Sub
     
         Private Sub LoopThroughXmlDoc(ByVal nodeList As XmlNodeList)
             For Each elem As XmlElement In nodeList
                 If elem.HasChildNodes Then
                     LoopThroughXmlDoc(elem.ChildNodes)
                 Else
                     '' Extract the information
                     If elem.HasAttribute("id") Then
                         'elem.Attributes("AssetID").Value.ToString()
                     ElseIf elem.HasAttribute("name") Then
                         'elem.Attributes("AttributeID").Value.ToString()
                     End If
                 End If
             Next
         End Sub
     
         Private Sub Button2_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
             Dim doc As XmlDocument = New XmlDocument
             doc.Load("xmlFile.xml")
             Dim nodeList As XmlNodeList = doc.GetElementsByTagName("input")
             LoopThroughXmlDoc(nodeList)
         End Sub
     End Class

http://support.microsoft.com/kb/317069
http://www.w3schools.com/xpath/