Sorting XML -> XML using XSL

I'm new to XSL and having difficulty in understanding how/when patterns match/process. I understand that it is declarative, not procedural, and am at the disadvantage of trying to process XML -> XML, not XML -> HTML (which is what all the tutorials appear to show). In essence I want to sort a subtree of my XML file (which is a Visual studio document - annoying it doesn't sort the files when added which is really bugging my team). In the subtree I want to sort the sibilngs by an attribute. A truncated sample of the file is:

<?xml version="1.0"?><SqlWorkbenchSqlProject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" Name="PMISQL"><Items><LogicalFolder Name="Connections" Type="2" Sorted="true"><Items><ConnectionNode Name="cerberus:XPOOLE\alistair.moreton"><Created>2013-06-28T15:50:27.919788+01:00</Created><Type>SQL</Type><Server>cerberus</Server><UserName /><Authentication>Windows Authentication</Authentication><InitialDB>master</InitialDB><LoginTimeout>15</LoginTimeout><ExecutionTimeout>0</ExecutionTimeout><ConnectionProtocol>NotSpecified</ConnectionProtocol><ApplicationName>Microsoft SQL Server Management Studio - Query</ApplicationName></ConnectionNode><ConnectionNode Name="hector:XPOOLE\alistair.moreton"><Created>2013-07-02T15:27:02.5793203+01:00</Created><Type>SQL</Type><Server>hector</Server><UserName /><Authentication>Windows Authentication</Authentication><InitialDB /><LoginTimeout>15</LoginTimeout><ExecutionTimeout>0</ExecutionTimeout><ConnectionProtocol>NotSpecified</ConnectionProtocol><ApplicationName>Microsoft SQL Server Management Studio - Query</ApplicationName></ConnectionNode></Items></LogicalFolder><LogicalFolder Name="Queries" Type="0" Sorted="true"><Items><FileNode Name="PMI001_AddressHistory.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI001_AddressHistory.sql</FullPath></FileNode><FileNode Name="PMI000_DataWarehouseState.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:hector:True</AssociatedConnectionMoniker><AssociatedConnSrvName>hector</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI000_DataWarehouseState.sql</FullPath></FileNode><FileNode Name="PMI003_PlannedAdmissions.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI003_PlannedAdmissions.sql</FullPath></FileNode><FileNode Name="PMI004_AllActivity.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI004_AllActivity.sql</FullPath></FileNode><FileNode Name="PMI002_ClinicCodes.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI002_ClinicCodes.sql</FullPath></FileNode></Items></LogicalFolder><LogicalFolder Name="Miscellaneous" Type="3" Sorted="true"><Items /></LogicalFolder></Items><SccProjectName>$/DataWarehouse/Dev/Reports/PMI</SccProjectName><SccAuxPath /><SccLocalPath>.</SccLocalPath><SccProvider>MSSCCI:Team Foundation Server MSSCCI Provider</SccProvider></SqlWorkbenchSqlProject>

and the XSL file I'm applying is:

<?xml version="1.0" encoding="iso-8859-1"?><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"><xsl:template match="/"><xsl:copy-of select="."/><xsl:apply-templates/></xsl:template><xsl:template match="/SqlWorkbenchSqlProject/Items/LogicalFolder[Name='Connections']"><xsl:copy-of select="."/></xsl:template><xsl:template match="/SqlWorkbenchSqlProject/Items/LogicalFolder[Name='Queries']"><xsl:copy-of select="."/></xsl:template><xsl:template match="/SqlWorkbenchSqlProject/Items/LogicalFolder[Name='Queries']/Items"><xsl:for-each select="./FileNode"><xsl:sort select="@Name" data-type="text" case-order="upper-first"/><xsl:copy-of select="."/></xsl:for-each></xsl:template><xsl:template match="/SqlWorkbenchSqlProject/Items/LogicalFolder[Name='Miscellaneous']"><xsl:copy-of select="."/></xsl:template></xsl:stylesheet>

I want to sort the FileNode siblings in /SqlWorkbenchSqlProject/Items/LogicalFolder where Name="Queries" by their @Name attribute, but I want the rest of the file to be output as it is.

If I run the transform above, I get additional junk at the end of the file, i.e.:

<?xml version="1.0" encoding="utf-8"?><SqlWorkbenchSqlProject Name="PMISQL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Items><LogicalFolder Name="Connections" Type="2" Sorted="true"><Items><ConnectionNode Name="cerberus:XPOOLE\alistair.moreton"><Created>2013-06-28T15:50:27.919788+01:00</Created><Type>SQL</Type><Server>cerberus</Server><UserName /><Authentication>Windows Authentication</Authentication><InitialDB>master</InitialDB><LoginTimeout>15</LoginTimeout><ExecutionTimeout>0</ExecutionTimeout><ConnectionProtocol>NotSpecified</ConnectionProtocol><ApplicationName>Microsoft SQL Server Management Studio - Query</ApplicationName></ConnectionNode><ConnectionNode Name="hector:XPOOLE\alistair.moreton"><Created>2013-07-02T15:27:02.5793203+01:00</Created><Type>SQL</Type><Server>hector</Server><UserName /><Authentication>Windows Authentication</Authentication><InitialDB /><LoginTimeout>15</LoginTimeout><ExecutionTimeout>0</ExecutionTimeout><ConnectionProtocol>NotSpecified</ConnectionProtocol><ApplicationName>Microsoft SQL Server Management Studio - Query</ApplicationName></ConnectionNode></Items></LogicalFolder><LogicalFolder Name="Queries" Type="0" Sorted="true"><Items><FileNode Name="PMI001_AddressHistory.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI001_AddressHistory.sql</FullPath></FileNode><FileNode Name="PMI000_DataWarehouseState.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:hector:True</AssociatedConnectionMoniker><AssociatedConnSrvName>hector</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI000_DataWarehouseState.sql</FullPath></FileNode><FileNode Name="PMI003_PlannedAdmissions.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI003_PlannedAdmissions.sql</FullPath></FileNode><FileNode Name="PMI004_AllActivity.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI004_AllActivity.sql</FullPath></FileNode><FileNode Name="PMI002_ClinicCodes.sql"><AssociatedConnectionMoniker>8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True</AssociatedConnectionMoniker><AssociatedConnSrvName>cerberus</AssociatedConnSrvName><AssociatedConnUserName /><FullPath>PMI002_ClinicCodes.sql</FullPath></FileNode></Items></LogicalFolder><LogicalFolder Name="Miscellaneous" Type="3" Sorted="true"><Items /></LogicalFolder></Items><SccProjectName>$/DataWarehouse/Dev/Reports/PMI</SccProjectName><SccAuxPath /><SccLocalPath>.</SccLocalPath><SccProvider>MSSCCI:Team Foundation Server MSSCCI Provider</SccProvider></SqlWorkbenchSqlProject>




          2013-06-28T15:50:27.919788+01:00
          SQL
          cerberus

          Windows Authentication
          master
          15
          0
          NotSpecified
          Microsoft SQL Server Management Studio - Query


          2013-07-02T15:27:02.5793203+01:00
          SQL
          hector

          Windows Authentication

          15
          0
          NotSpecified
          Microsoft SQL Server Management Studio - Query






          8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True
          cerberus

          PMI001_AddressHistory.sql


          8c91a03d-f9b4-46c0-a305-b5dcc79ff907:hector:True
          hector

          PMI000_DataWarehouseState.sql


          8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True
          cerberus

          PMI003_PlannedAdmissions.sql


          8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True
          cerberus

          PMI004_AllActivity.sql


          8c91a03d-f9b4-46c0-a305-b5dcc79ff907:cerberus:True
          cerberus

          PMI002_ClinicCodes.sql







  $/DataWarehouse/Dev/Reports/PMI

  .
  MSSCCI:Team Foundation Server MSSCCI Provider

So:

(a) any idea how I modify the transform to achieve my aim and why, and

(b) where is the junk coming from? I have no XSL nodes that are xsl:value-of, so why are values being output for nodes that have already been processed, and lastly,

(c) in general, if I want to generate as output, the input file, except for a subtree that I want to treat differently, what is the pattern to do this?

Any help will be very much appreciated.

Many thanks,

Mark