Need help exporting SQL table to XML file for a dynamic menu feed...

I have a recursive table with a list of topics and subtopics, using a parent/child relationship...

CREATE TABLE [_Topics] (
      [Topic_ID] [int] NOT NULL ,
      [Topic] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
      [Parent] [int] NULL ,
      CONSTRAINT [PK__Topics] PRIMARY KEY  CLUSTERED
      (
            [Topic_ID]
      )  ON [PRIMARY]
) ON [PRIMARY]
GO


I also have a stored procedure to create and xml dataset...

CREATE  Procedure _build_menu
As
SET NOCOUNT ON
Select     1 As Tag,
     0 As Parent,
     Null as [Topics!1],
     Null as [Topic!2!ID],
     Null as [Topic!2!Name]
Union
Select     2,
     1,
     Null,
     Topic_ID,
     Topic
From _Topics
For Xml Explicit
GO


And some ASP code to run it each time a topic is added...

Dim con, strLORE, cmd, stm
str = "my_connect_string"
Set con = Server.CreateObject("ADODB.Connection")
con.Open(str)
Set stm = Server.CreateObject("ADODB.Stream")
stm.Open
Set cmd = Server.CreateObject("ADODB.Command")
With cmd
      Set      .ActiveConnection = con
            .CommandType = 4
            .CommandText = "_build_menu"
            .Properties("Output Stream").Value = stm
            .Execute , , 1024
End With
Set cmd = Nothing
stm.SaveToFile "d:\webs\thissite\xml\Topics.xml", 2
Response.Write "File saved."
stm.Close
Set stm = Nothing
con.Close
Set con = Nothing


And lastly, the problem...  The resulting file is a single line text demp, that appears to be xml, but there does not seem to be a parent/child relationship, it is simply a dump, row-by-row, of the table.  How can I make this file appear as a properly formatted xml file and with the relationship desired?