SQL delle tabelle:

CREATE TABLE `polls` (
 `id` int(10) unsigned NOT NULL auto_increment,
 `title` varchar(255) collate latin1_general_ci NOT NULL,
 `description` text collate latin1_general_ci NOT NULL,
 `status` tinyint(3) unsigned NOT NULL,
 `start` datetime NOT NULL,
 `end` datetime NOT NULL,
 `created` datetime NOT NULL,
 `modified` datetime NOT NULL,
 `registrar` text collate latin1_general_ci NOT NULL,
 `forwarder` text collate latin1_general_ci NOT NULL,
 `collector` text collate latin1_general_ci NOT NULL,
 `agentname` varchar(255) collate latin1_general_ci NOT NULL,
 `agenturl` varchar(255) collate latin1_general_ci NOT NULL,
PRIMARY KEY  (`id`)
) ENGINE=MyISAM;

CREATE TABLE `questions` (
 `id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
 `title` TINYTEXT NOT NULL,
 `description` TINYTEXT NOT NULL,
 `type` VARCHAR(45) NOT NULL,
 `data` TEXT NOT NULL,
 `weight` TINYINT UNSIGNED NOT NULL,
 `poll_id` INTEGER UNSIGNED NOT NULL,
PRIMARY KEY (`id`)
)
ENGINE = MyISAM;

CREATE TABLE `question_items` (
 `id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
 `title` TINYTEXT NOT NULL,
 `help_text` TINYTEXT NOT NULL,
 `weight` TINYINT UNSIGNED NOT NULL,
 `question_id` INTEGER UNSIGNED NOT NULL,
PRIMARY KEY (`id`)
)
ENGINE = MyISAM;

CREATE TABLE  `users` (
 `id` int(11) NOT NULL auto_increment,
 `username` varchar(255) NOT NULL default '',
 `password` varchar(36) NOT NULL default '',
 `first_name` varchar(255) default '',
 `last_name` varchar(255) default '',
 `email` varchar(255) NOT NULL default '',
 `showemail` tinyint(1) NOT NULL default '0',
 `admin` tinyint(1) NOT NULL default '0',
 `active` tinyint(1) NOT NULL default '0',
 `created` datetime default NULL,
 `modified` datetime default NULL,
PRIMARY KEY  (`id`),
UNIQUE KEY `username` (`username`),
UNIQUE KEY `email` (`email`)
) ENGINE=MyISAM