Placering af upload file

Hej,
Hvordan får jeg placeret en upload file i det her mail script?

<%@ Language=VBScript %>
          &nbsp;<br>
<%
if Request.Form("sendknap") = "Send" then
    ' -- Hent form-felter
    firma = Request.Form("firma")
    navn = Request.Form("navn")
    email = Request.Form("email")
    telefon = Request.Form("telefon")
    kilo = Request.Form("kilo")
    kommentar = Request.Form("kommentar")
   
    ' -- Saml emailens tekst
    body = firma & vbCrLf & navn & vbCrLf & email & vbCrLf & telefon & vbCrLf & kilo
    body = body & vbCrLf & vbCrLf & "Evt. kommentar: " & vbCrLf & vbCrLf & kommentar

    ' -- Klargør AspMail
    Set Mailer = Server.CreateObject("SMTPsvg.Mailer")
    Mailer.FromName = "xx"
    Mailer.FromAddress = "xx"
    Mailer.RemoteHost = "Kunden"
    Mailer.AddRecipient "xx","xx@xx.dk"
    Mailer.Subject = "Prisforespørgsel"
    Mailer.BodyText = body
   
    ' -- Send mailen
    If Mailer.SendMail Then
        Response.Write("<br><br><br><br><b><center>Vi har modtaget din besked og vender snart tilbage med et tilbud</center></b>")
    Else
        Response.Write("Der skete en fejl. Fejlen var: " & Mailer.Response)
    End If
Else
%>
<form method="post" action="bestilling.asp">
  <table border="0" STYLE="table-layout: fixed" width="100%" class="text_main">
    <tr>
      <td width="11%">Firma</td>
      <td width="89%"><input type="text" name="firma" size="31"></td>
    </tr>
    <tr>
      <td width="11%">Navn</td>
      <td width="89%"><input type="text" name="navn" size="31"></td>
    </tr>
    <tr>
      <td width="11%">Email</td>
      <td width="89%"> <input type="text" name="email" size="31"></td>
    </tr>
    <tr>
      <td width="11%">Telefon</td>
      <td width="89%"><input type="text" name="telefon" size="31"></td>
    </tr>
    <tr>
      <td width="11%">Kilo</td>
      <td width="89%"><select name="kilo" name="kilo" size="1">
                <option value="20-80 kg">20-80 kg</option>
                <option value="100-180 kg">100-180 kg</option>
                <option value="200-480 kg">200-500 kg</option>
                <option value="500-1000 kg">500-1000 kg</option>
                <option value="Over 1000 kg">Over 1000 kg</option>
              </select></td>
    </tr>
    <tr>
      <td width="100%" colspan="2"><br>Beskrivelse<br><br> <textarea name="kommentar" rows="5" cols="31">Beskrivelse</textarea><br><br>
  <input type="submit" name="sendknap" value="Send">
      </td>
    </tr>
  </table>
</form>
<%
End If
%>