diff --git a/common.php b/common.php
index f527e329..a96c9f91 100644
--- a/common.php
+++ b/common.php
@@ -27,7 +27,7 @@ session_start();
 
 define('MYAAC', true);
 define('MYAAC_VERSION', '0.7.3-dev');
-define('DATABASE_VERSION', 18);
+define('DATABASE_VERSION', 19);
 define('TABLE_PREFIX', 'myaac_');
 define('START_TIME', microtime(true));
 define('MYAAC_OS', (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? 'WINDOWS' : (strtoupper(PHP_OS) == 'DARWIN' ? 'MAC' : 'LINUX'));
diff --git a/install/steps/5-database.php b/install/steps/5-database.php
index 62ef1e70..580eaa6d 100644
--- a/install/steps/5-database.php
+++ b/install/steps/5-database.php
@@ -218,6 +218,11 @@ if(!$error) {
 				if(query("ALTER TABLE `players` ADD `comment` TEXT NOT NULL;"))
 					success($locale['step_database_adding_field'] . ' players.comment...');
 			}
+
+			if(!fieldExist('is_sample', 'players')) {
+				if(query("ALTER TABLE `players` ADD `is_sample` TINYINT(1) NOT NULL DEFAULT 0;"))
+					success($locale['step_database_adding_field'] . ' players.is_sample...');
+			}
 		}
 		
 		if(!$error && (!isset($_SESSION['saved']))) {
@@ -239,6 +244,10 @@ if(!$error) {
 			$content .= PHP_EOL;
 			$content .= '$config[\'client_download_linux\'] = \'http://tibia-clients.com/clients/download/\'. $config[\'client\'] . \'/tar/linux\';';
 			$content .= PHP_EOL;
+			$content .= '$config[\'session_prefix\'] = \'myaac_' . generateRandomString(8, true, false, true, false) . '\';';
+			$content .= PHP_EOL;
+			$content .= '$config[\'cache_prefix\'] = \'myaac_' . generateRandomString(8, true, false, true, false) . '\';';
+			$content .= PHP_EOL;
 			$content .= '// place for your configuration directives, so you can later easily update myaac';
 			$content .= PHP_EOL;
 			$content .= "?>";
diff --git a/install/steps/7-finish.php b/install/steps/7-finish.php
index eb668947..2486b8e8 100644
--- a/install/steps/7-finish.php
+++ b/install/steps/7-finish.php
@@ -101,9 +101,12 @@ else {
 			$player_id = $query['id'];
 		}
 
-		if(query("INSERT INTO `myaac_news` (`id`, `type`, `date`, `category`, `title`, `body`, `player_id`, `comments`, `hidden`) VALUES (NULL, '1', UNIX_TIMESTAMP(), '2', 'Hello!', 'MyAAC is just READY to use!', " . $player_id . ", 'http://my-aac.org', '0');
-INSERT INTO `myaac_news` (`id`, `type`, `date`, `category`, `title`, `body`, `player_id`, `comments`, `hidden`) VALUES (NULL, '2', UNIX_TIMESTAMP(), '4', 'Hello tickets!', 'http://my-aac.org', " . $player_id . ", '', '0');")) {
-			success($locale['step_database_created_news']);
+		$query = $db->query("SELECT `id` FROM `" . TABLE_PREFIX ."news` WHERE `title` LIKE 'Hello';");
+		if($query->rowCount() == 0) {
+			if(query("INSERT INTO `" . TABLE_PREFIX ."news` (`id`, `type`, `date`, `category`, `title`, `body`, `player_id`, `comments`, `hidden`) VALUES (NULL, '1', UNIX_TIMESTAMP(), '2', 'Hello!', 'MyAAC is just READY to use!', " . $player_id . ", 'http://my-aac.org', '0');
+	INSERT INTO `myaac_news` (`id`, `type`, `date`, `category`, `title`, `body`, `player_id`, `comments`, `hidden`) VALUES (NULL, '2', UNIX_TIMESTAMP(), '4', 'Hello tickets!', 'http://my-aac.org', " . $player_id . ", '', '0');")) {
+				success($locale['step_database_created_news']);
+			}
 		}
 
 		$deleted = 'deleted';
diff --git a/system/functions.php b/system/functions.php
index 7a5dcbb3..422e31df 100644
--- a/system/functions.php
+++ b/system/functions.php
@@ -971,7 +971,7 @@ function getTopPlayers($limit = 5) {
 		if(fieldExist('deletion', 'players'))
 			$deleted = 'deletion';
 		
-		$players = $db->query('SELECT `name`, `level`, `experience` FROM `players` WHERE `group_id` < ' . $config['highscores_groups_hidden'] . ' AND `' . $deleted . '` = 0 AND account_id != 1 ORDER BY `experience` DESC LIMIT 5')->fetchAll();
+		$players = $db->query('SELECT `name`, `level`, `experience` FROM `players` WHERE `group_id` < ' . $config['highscores_groups_hidden'] . ' AND `is_sample` = 0 AND `' . $deleted . '` = 0 AND `account_id` != 1 ORDER BY `experience` DESC LIMIT 5')->fetchAll();
 		
 		$i = 0;
 		foreach($players as &$player) {
diff --git a/system/pages/highscores.php b/system/pages/highscores.php
index 992bed2b..afe43ad7 100644
--- a/system/pages/highscores.php
+++ b/system/pages/highscores.php
@@ -121,16 +121,16 @@ if($skill <= POT::SKILL_LAST) { // skills
 			POT::SKILL_FISH => 'skill_fishing',
 		);
 
-		$skills = $db->query('SELECT accounts.country, players.id,players.name' . $online . ',level,vocation' . $promotion . $outfit . ', ' . $skill_ids[$skill] . ' as value FROM accounts,players WHERE players.' . $deleted . ' = 0 AND players.group_id < '.$config['highscores_groups_hidden'].' '.$add_sql.' AND players.id > 6 AND accounts.id = players.account_id ORDER BY ' . $skill_ids[$skill] . ' DESC LIMIT 101 OFFSET '.$offset);
+		$skills = $db->query('SELECT accounts.country, players.id,players.name' . $online . ',level,vocation' . $promotion . $outfit . ', ' . $skill_ids[$skill] . ' as value FROM accounts,players WHERE players.is_sample = 0 AND players.' . $deleted . ' = 0 AND players.group_id < '.$config['highscores_groups_hidden'].' '.$add_sql.' AND players.id > 6 AND accounts.id = players.account_id ORDER BY ' . $skill_ids[$skill] . ' DESC LIMIT 101 OFFSET '.$offset);
 	}
 	else
-		$skills = $db->query('SELECT accounts.country, players.id,players.name' . $online . ',value,level,vocation' . $promotion . $outfit . ' FROM accounts,players,player_skills WHERE players.' . $deleted . ' = 0 AND players.group_id < '.$config['highscores_groups_hidden'].' '.$add_sql.' AND players.id > 6 AND players.id = player_skills.player_id AND player_skills.skillid = '.$skill.' AND accounts.id = players.account_id ORDER BY value DESC, count DESC LIMIT 101 OFFSET '.$offset);
+		$skills = $db->query('SELECT accounts.country, players.id,players.name' . $online . ',value,level,vocation' . $promotion . $outfit . ' FROM accounts,players,player_skills WHERE players.is_sample = 0 AND players.' . $deleted . ' = 0 AND players.group_id < '.$config['highscores_groups_hidden'].' '.$add_sql.' AND players.id > 6 AND players.id = player_skills.player_id AND player_skills.skillid = '.$skill.' AND accounts.id = players.account_id ORDER BY value DESC, count DESC LIMIT 101 OFFSET '.$offset);
 }
 else if($skill == 666 && $config['otserv_version'] == TFS_03) // frags
 {
 	$skills = $db->query('SELECT accounts.country, players.id,players.name' . $online . ',level,vocation' . $promotion . $outfit . ',COUNT(`player_killers`.`player_id`) as value' .
 			' FROM `accounts`, `players`, `player_killers` ' .
-			' WHERE players.' . $deleted . ' = 0 AND players.group_id < '.$config['highscores_groups_hidden'].' '.$add_sql.' AND players.id = player_killers.player_id AND accounts.id = players.account_id' .
+			' WHERE players.is_sample = 0 AND players.' . $deleted . ' = 0 AND players.group_id < '.$config['highscores_groups_hidden'].' '.$add_sql.' AND players.id = player_killers.player_id AND accounts.id = players.account_id' .
 			' GROUP BY `player_id`' .
 			' ORDER BY value DESC' .
 			' LIMIT 101 OFFSET '.$offset);