phpnuke installation

Salut a tous, je vais crée un site sur phpnuke mais le probléme c que lorsque je configure le fichier config.php (car je doit l'installer sur mon hébérgeur free), j'envoie tous le contenu des fichier qui est dans le dossier html dans mon ftp et lorsque je rentre sur mon site ca me met


Warning: main(language/lang-.php) [function.main]: failed to open stream: No such file or directory in /mnt/140/sdb/3/7/simsekumut/mainfile.php on line 224

Warning: main() [function.include]: Failed opening 'language/lang-.php' for inclusion (include_path='/mnt/140/sdb/3/7/simsekumut/include:.usr/php4/lib/php') in /mnt/140/sdb/3/7/simsekumut/mainfile.php on line 224

Warning: main(themes//theme.php) [function.main]: failed to open stream: No such file or directory in /mnt/140/sdb/3/7/simsekumut/mainfile.php on line 873

Warning: main() [function.include]: Failed opening 'themes//theme.php' for inclusion (include_path='/mnt/140/sdb/3/7/simsekumut/include:.usr/php4/lib/php') in /mnt/140/sdb/3/7/simsekumut/mainfile.php on line 873

Warning: main(themes//theme.php) [function.main]: failed to open stream: No such file or directory in /mnt/140/sdb/3/7/simsekumut/mainfile.php on line 1110

Warning: main() [function.include]: Failed opening 'themes//theme.php' for inclusion (include_path='/mnt/140/sdb/3/7/simsekumut/include:.usr/php4/lib/php') in /mnt/140/sdb/3/7/simsekumut/mainfile.php on line 1110

Warning: head(themes//theme.php) [function.head]: failed to open stream: No such file or directory in /mnt/140/sdb/3/7/simsekumut/header.php on line 32

Warning: head() [function.include]: Failed opening 'themes//theme.php' for inclusion (include_path='/mnt/140/sdb/3/7/simsekumut/include:.usr/php4/lib/php') in /mnt/140/sdb/3/7/simsekumut/header.php on line 32

Fatal error: Call to undefined function: themeheader() in /mnt/140/sdb/3/7/simsekumut/header.php on line 53


je suis sur que sa vient du fichier config.php..
mais je n'est pas trouver de solution, merci pour vos réponses !