Requirements. Since version 1.3 Polymorphic GuestBook demands Smarty (http://smarty.incutio.com/). Smarty is a template engine for PHP.It facilitates a manageable way to separate application logic and content from its presentation. The nobility suffices for creation skins only HTML and Smarty The example can be found in skins/default. Smarty can be already established on your hosting as a rule in/usr/local/lib/php/Smarty. If at you not access to administration of a server, you can unpack archive Smarty in a directory where you have access for write resolved and later in time installation to specify a path to it. Load and unpack archive into a corresponding directory on a server tar xj PhcGB-x.x.x.tar.bz2 tar xz PhcGB-x.x.x.tar.gz unzip PhcGB-x.x.x.zip Establish necessary access rights: chmod 0666 config.inc.php (if this file does not exist create it touch config.inc.php) If allow to use avatars (are by default resolved to forbid it is possible in the panel of administration) chmod 0777 img/avatars. Only if you wish to add new smiles: chmod 0777 img/smiles. For Smarty: chmod 0777 skins/default/cache chmod 0777 skins/default/templates_c Then send a favourite browser to the address of where it has been unpacked Polymorphic GuestBook, and follow instructions. After installation NECESSARILY establish the rights for config.inc.php on reading only: chmod 0444 config.inc.php Remove a folder install/ Until then while you will not make it - will be deduced warning the message.