Local accounts and custom default profile

Hi

After reading the http://support.microsoft.com/kb/973289 article, I created these two files:
For Windows 7 SP1 32-bit:

<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
    <settings pass="specialize">
        <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x32" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS"
xmlns:wcm="[URL]http://schemas.microsoft.com/WMIConfig/2002/State[/URL]" xmlns:xsi="[URL]http://www.w3.org/2001/XMLSchema-instance[/URL]">
            <CopyProfile>true</CopyProfile>
        </component>
    </settings> <cpi:offlineImage cpi:source="wim://<computerName>/<Source_dir>/install.wim#Windows 7 <Edition>" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>

 
For Windows 7 SP1 64-bit:
 

<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
    <settings pass="specialize">
        <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS"
xmlns:wcm="[URL]http://schemas.microsoft.com/WMIConfig/2002/State[/URL]" xmlns:xsi="[URL]http://www.w3.org/2001/XMLSchema-instance[/URL]">
            <CopyProfile>true</CopyProfile>
        </component>
    </settings> <cpi:offlineImage cpi:source="wim://<computerName>/<Source_dir>/install.wim#Windows 7 <Edition>" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>

It is possible to merge the two xml files or not?
It is possible to create an xml file also valid for any edition?
In an installation of Windows 7 SP1, there is the install.wim or I must always specify its source path?
I am obliged to enable the Administrator account and configure it or I could use my administrator account, already configured, to run the Sysprep utility?
Thanks
Bye

I created the CopyProfile.xml file:

<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
<settings pass="generalize">
<component name="Microsoft-Windows-Security-Licensing-SLC" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="[URL="http://schemas.microsoft.com/WMIConfig/2002/State"][COLOR=#0000aa]http://schemas.microsoft.com/WMIConfig/2002/State[/COLOR][/URL]" xmlns:xsi="[URL="http://www.w3.org/2001/XMLSchema-instance"][COLOR=#0000aa]http://www.w3.org/2001/XMLSchema-instance[/COLOR][/URL]">
<SkipRearm>1</SkipRearm>
</component>
</settings>
<settings pass="specialize">
<component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="[URL="http://schemas.microsoft.com/WMIConfig/2002/State"][COLOR=#0000aa]http://schemas.microsoft.com/WMIConfig/2002/State[/COLOR][/URL]" xmlns:xsi="[URL="http://www.w3.org/2001/XMLSchema-instance"][COLOR=#0000aa]http://www.w3.org/2001/XMLSchema-instance[/COLOR][/URL]">
<CopyProfile>true</CopyProfile>
</component>
</settings>
<cpi:offlineImage cpi:source="wim://<computerName>/<Source_dir>/install.wim#Windows 7 <Edition>" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>

 
and I put it in an USB stick.
So, I planned to install Windows 7 normally, install the additional drivers, update Windows, go to audit mode with the c:\windows\system32\sysprep\sysprep.exe /audit command, delete the account created during installation, customize the Administrator account. Finally, I run the c:\windows\system32\sysprep\sysprep.exe /oobe /reboot /generalize /unattend:<USB stick unit>:\CopyProfile.xml command to go into OOBE mode. Right? Is there a better way to do this?
Thanks
Bye