* Fixed SQL injection in search due to zend_hash_del_key_or_index hole in PHP <4.4.3 and <5.1.4. Thanks Nms (nms@wargan.org). * Fixed a local file inclusion vulnerability. Was fixed into profile.php some time ago, but for some reason, was left out of register.php. Thanks Nms (nms@wargan.org) and Smartys. * Fixed some admin only SQL injections. Thanks Smartys. * Implemented search performance tweak (removed unnecessary join with the posts table). Thanks Yann for reporting and whoever noticed the fault at skyblog.com for the patch. * Fixed admins being able to set default group to admin, moderator or guest with a custom request. Thanks Smartys. * Fixed being able to ban all guests. Thanks Smartys. * Fixed install on MySQL 5.0.25 and later. * Stylesheet fixes for IE7.