Your config.spip file has the following structure:

<?xml version="1.0" encoding="ISO-8859-1"?>
    
<spipconfig>
    <shorttitle>SPIP</shorttitle>
    <title>Introduction into SPIP - Simple Presentations In Perl</title>
    <author>Christian Dühl</author>
    <date>February 2005</date>
    <datadirectory>sheets</datadirectory>
    <picturedirectory>pictures</picturedirectory>
    <sourcedirectory>source</sourcedirectory>
    <headpicture>spip.png</headpicture>
    <target>html</target>
    <files>
        <file>01_intro</file>
        <file>02_intro</file>
        <file>03_intro</file>
        ...
    </files>
</spipconfig>
 
^^
Copyright Christian Dühl February 2005