Unattended Domain Join and Computer Name

Question

I used to use RIS and we utilized the Directory Services tab of the WDS server properties.  There we set a client naming policy using the variable MC%MAC
I have finally been able to tweak my image unattend file to get the machine to join the domain in a particular OU.  However it ignores the settings I have in the Directory Services tab as far as the naming policy.  I tried to set the same variable
in the computername section of my xml file but it will error out everytime.  If I set a plain static computername in the field it is fine.  Can I not use the MAC variable in that section?  Is there a way I can "tell" it to reference
the naming policy we used in the Directory Services tab?  
This is what I was trying:
<component name="Microsoft-Windows-UnattendedJoin" 
processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" 
language="neutral" versionScope="nonSxS" 
xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <Identification>
                <JoinDomain>mapcom.local</JoinDomain>
                <MachineObjectOU>OU=Call Center Terminal, 
OU=Workstations, DC=domain, DC=local</MachineObjectOU>
                <Credentials>
                    <Domain>domain.local</Domain>
                    <Password>XXXXXXXX</Password>
                    <Username>ccinstall</Username>
                </Credentials>
            </Identification>
        </component>
        <component name="Microsoft-Windows-Shell-Setup" 
processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" 
language="neutral" versionScope="nonSxS" 
xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <ComputerName>MC%MAC</ComputerName>
            <TimeZone>Eastern Standard Time</TimeZone>
        </component>
    </settings>
    <cpi:offlineImage cpi:source="catalog:c:/documents and 
settings/administrator.mapcom/desktop/win7wim64/install_windows 7 
professional.clg" xmlns:cpi="urn:schemas-microsoft-com:cpi" />
</unattend>

Answer 1

OK, so I was able to get the machine to read the computer naming policy settings on the WDS server, but I had to set the unsecurejoin to true and set Computername to just * , and now the CN is being created properly but its not going to the proper OU!  Ah!!!
 I get one thing to work and then it breaks another!  Sooooo, is it possible to have an unsecure join going to an OU?
 <settings pass="specialize">
        <component name="Microsoft-Windows-UnattendedJoin" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <Identification>
                <JoinDomain>mapcom.local</JoinDomain>
                <MachineObjectOU>OU=Call Center Terminal, OU=Workstations, DC=domain, DC=local</MachineObjectOU>
                <Credentials>
                    <Domain>domain.local</Domain>
                    <Password>xxxxxx</Password>
                    <Username>ccinstall</Username>
                </Credentials>
                <UnsecureJoin>true</UnsecureJoin>
            </Identification>
        </component>
        <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <ComputerName>*</ComputerName>
            <TimeZone>Eastern Standard Time</TimeZone>
        </component>
    </settings>
    <cpi:offlineImage cpi:source="catalog:c:/documents and settings/administrator.mapcom/desktop/win7wim64/install_windows 7 professional.cl