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if you want to add avatars or smilies to your forum just upload them in the folder
/img/avatars and /img/other_smilies , the forum will automatically find them !

If an avatar doesn't appear in the gallery popup maybe hasn't either the correct extension or it's too big for the maximum sizes of the avatars that you can change in the administration panel.
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if you need to change some database connection parameters or the names of the tables change the file inc/config.inc.php which is created automatically after the installation
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