diff --git a/gulliver/system/class.g.php b/gulliver/system/class.g.php
index 498e81059..5859d99b0 100644
--- a/gulliver/system/class.g.php
+++ b/gulliver/system/class.g.php
@@ -1704,6 +1704,7 @@ class G
    */   
   function SendTemporalMessage($msgID, $strType, $sType='LABEL', $time=null, $width=null, $customLabels= null)
   {
+      echo"Inside Send Temporal Message";
     if( isset($width) ){
       $_SESSION['G_MESSAGE_WIDTH'] = $width;
     }
diff --git a/gulliver/system/class.rbac.php b/gulliver/system/class.rbac.php
index 280f9a7ac..5a1effec2 100644
--- a/gulliver/system/class.rbac.php
+++ b/gulliver/system/class.rbac.php
@@ -158,24 +158,22 @@ class RBAC
     //if we provide a path data and session we will cache the session Info for this user
     if ( $pathData != null && $sid != null ) {
       $pathData = $pathData . 'session' . PATH_SEP;
-      $filePath = $pathData . $sid . '.rbac';      
+      $filePath = $pathData . $sid . '.rbac';
       if ( file_exists ( $filePath ) && filesize($filePath) > 0 ) {
-        $this->aUserInfo = unserialize( file_get_contents ( $filePath ) );
+          $this->aUserInfo = unserialize( file_get_contents ( $filePath ) );
         return;
       }
     }
-    
     $this->sSystem = $sSystem;
     $fieldsSystem = $this->systemObj->loadByCode($sSystem);
     $fieldsRoles = $this->usersRolesObj->getRolesBySystem ($fieldsSystem['SYS_UID'], $sUser );
     $fieldsPermissions = $this->usersRolesObj->getAllPermissions ($fieldsRoles['ROL_UID'], $sUser );
-
     $this->aUserInfo[ $sSystem ]['SYS_UID'] = $fieldsSystem['SYS_UID'];
     $this->aUserInfo[ $sSystem ]['ROLE'] = $fieldsRoles;
     $this->aUserInfo[ $sSystem ]['PERMISSIONS'] = $fieldsPermissions;
-
+  
     if ( $pathData != null && $sid != null ) {
-      G::mk_dir ( $pathData );
+       G::mk_dir ( $pathData );
       file_put_contents( $filePath, serialize ( $this->aUserInfo ) );
     }
   }
diff --git a/gulliver/thirdparty/pear/DB.php b/gulliver/thirdparty/pear/DB.php
index 1ff4dc228..8af3f65a5 100644
--- a/gulliver/thirdparty/pear/DB.php
+++ b/gulliver/thirdparty/pear/DB.php
@@ -307,7 +307,7 @@ class DB
             return $tmp;
         }
 
-        @$obj =& new $classname;
+        @$obj = new $classname;
 
         foreach ($options as $option => $value) {
             $test = $obj->setOption($option, $value);
@@ -381,7 +381,7 @@ class DB
             return $tmp;
         }
 
-        @$obj =& new $classname;
+        @$obj = new $classname;
 
         foreach ($options as $option => $value) {
             $test = $obj->setOption($option, $value);
@@ -887,7 +887,7 @@ class DB_result
                 if ($object_class == 'stdClass') {
                     $arr = (object) $arr;
                 } else {
-                    $arr = &new $object_class($arr);
+                    $arr = new $object_class($arr);
                 }
             }
             return $arr;
diff --git a/workflow/engine/classes/class.pluginRegistry.php b/workflow/engine/classes/class.pluginRegistry.php
index 7853f63c8..63336e685 100644
--- a/workflow/engine/classes/class.pluginRegistry.php
+++ b/workflow/engine/classes/class.pluginRegistry.php
@@ -190,7 +190,7 @@ class PMPluginRegistry {
       if ( $sNamespace == $namespace ) {
         $this->registerFolder($sNamespace, $sNamespace, $detail->sPluginFolder ); //register the default directory, later we can have more
         $this->_aPluginDetails[$sNamespace]->enabled = true;
-        $oPlugin =& new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
+        $oPlugin = new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
         $this->_aPlugins[$detail->sNamespace] =& $oPlugin;
         if (method_exists($oPlugin, 'enable')) {
           $oPlugin->enable();
@@ -209,7 +209,7 @@ class PMPluginRegistry {
     foreach ( $this->_aPluginDetails as $namespace=>$detail ) {
       if ( $sNamespace == $namespace ) {
         unset ($this->_aPluginDetails[$sNamespace]);
-        $oPlugin =& new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
+        $oPlugin = new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
         $this->_aPlugins[$detail->sNamespace] =& $oPlugin;
         if (method_exists($oPlugin, 'disable')) {
           $oPlugin->disable();
@@ -298,7 +298,7 @@ class PMPluginRegistry {
   try {
     foreach ( $this->_aPluginDetails as $namespace=>$detail ) {
       if ( $sNamespace == $namespace ) {
-      $oPlugin =& new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
+      $oPlugin = new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
       $this->_aPlugins[$detail->sNamespace] =& $oPlugin;
       $oPlugin->install();
       }
@@ -769,7 +769,7 @@ class PMPluginRegistry {
           $sFilename = PATH_PLUGINS . $aux[ count($aux) -1];
           if (! file_exists($sFilename) ) continue;
           require_once( $sFilename);
-          $oPlugin =& new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
+          $oPlugin = new $detail->sClassName( $detail->sNamespace, $detail->sFilename );
           $this->_aPlugins[$detail->sNamespace] =& $oPlugin;
 
           $iPlugins++;
diff --git a/workflow/engine/classes/model/Configuration.php b/workflow/engine/classes/model/Configuration.php
index bd00b35b2..258266048 100644
--- a/workflow/engine/classes/model/Configuration.php
+++ b/workflow/engine/classes/model/Configuration.php
@@ -140,6 +140,6 @@ class Configuration extends BaseConfiguration {
   public function exists($CfgUid, $ObjUid, $ProUid, $UsrUid, $AppUid)
   {
     $oRow = ConfigurationPeer::retrieveByPK( $CfgUid, $ObjUid, $ProUid, $UsrUid, $AppUid );
-    return ( get_class ($oRow) == 'Configuration' );
+    return ( get_class ($oRow) == 'Configuration' && $oRow != '');
   }
 } // Configuration
diff --git a/workflow/engine/classes/model/Department.php b/workflow/engine/classes/model/Department.php
index f202e3112..978f0c380 100644
--- a/workflow/engine/classes/model/Department.php
+++ b/workflow/engine/classes/model/Department.php
@@ -165,7 +165,7 @@ protected $depo_title = '';
     $con = Propel::getConnection(DepartmentPeer::DATABASE_NAME);
     try {
       $oDept = DepartmentPeer::retrieveByPk( $DepUid );
-      if ( get_class ($oDept) == 'Department' ) { 
+      if (is_object ($oDept) && get_class ($oDept) == 'Department' ) {
         $aFields = $oDept->toArray(BasePeer::TYPE_FIELDNAME);
         $this->fromArray ($aFields, BasePeer::TYPE_FIELDNAME );
         $aFields['DEPO_TITLE'] = $oDept->getDepTitle();
diff --git a/workflow/engine/classes/model/Process.php b/workflow/engine/classes/model/Process.php
index 1008c8893..2863134ae 100644
--- a/workflow/engine/classes/model/Process.php
+++ b/workflow/engine/classes/model/Process.php
@@ -214,7 +214,7 @@ class Process extends BaseProcess {
     $con = Propel::getConnection(ProcessPeer::DATABASE_NAME);
     try {
       $oPro = ProcessPeer::retrieveByPk( $ProUid );
-      if ( get_class($oPro) == 'Process' ) {
+      if (is_object($oPro) && get_class($oPro) == 'Process' ) {
         return true;
       }
       else {
diff --git a/workflow/engine/classes/model/UsersProperties.php b/workflow/engine/classes/model/UsersProperties.php
index 56ee10d96..e95f417ef 100644
--- a/workflow/engine/classes/model/UsersProperties.php
+++ b/workflow/engine/classes/model/UsersProperties.php
@@ -15,10 +15,13 @@ require_once 'classes/model/om/BaseUsersProperties.php';
  * @package    classes.model
  */
 class UsersProperties extends BaseUsersProperties {
-  function UserPropertyExists($sUserUID) {
+    function UserPropertyExists($sUserUID) {
     try {
       $oUserProperty = UsersPropertiesPeer::retrieveByPk($sUserUID);
-      if (get_class($oUserProperty) == 'UsersProperties') {
+      var_dump($oUserProperty);
+      var_dump($sUserUID);
+      if (get_class($oUserProperty) == 'UsersProperties' && $oUserProperty != '') {
+          echo"inside";
         return true;
       }
       else {
diff --git a/workflow/engine/methods/install/install.js b/workflow/engine/methods/install/install.js
index dda271d52..73a1ea5ed 100644
--- a/workflow/engine/methods/install/install.js
+++ b/workflow/engine/methods/install/install.js
@@ -72,7 +72,7 @@ var installer=function()
 
 		var tr = this.table.insertRow(-1);
 		$(tr).append(
-			new DOM('td',{innerHTML:"PHP Version >= 5.1.x and PHP Version < 5.3.0",className:"inst_td0",colSpan:2}),
+			new DOM('td',{innerHTML:"PHP Version < 5.3.0",className:"inst_td0",colSpan:2}),
 			this.phpVersion = new DOM('td',{innerHTML:'Loading...',className:"inst_td1",colSpan:2})
 		);
 
diff --git a/workflow/engine/methods/install/installServer.php b/workflow/engine/methods/install/installServer.php
index ff1c5b45b..d194be16b 100644
--- a/workflow/engine/methods/install/installServer.php
+++ b/workflow/engine/methods/install/installServer.php
@@ -66,7 +66,7 @@ if($action==="check")
 		)
 	));
 	$data=null;
-	$data->phpVersion	=(version_compare(PHP_VERSION,"5.1.0",">=") && version_compare(PHP_VERSION,"5.3.0","<") )?true:false;
+	$data->phpVersion	=(version_compare(PHP_VERSION,"5.1.0",">="))?true:false;
 	if(trim($dataClient->mysqlH)=='' || trim($dataClient->mysqlU)=='')
 	{
 		$con = array('connection'=>false,'grant'=>false,'message'=>'Please complete the input fields (Hostname/Username)');
diff --git a/workflow/engine/methods/login/authentication.php b/workflow/engine/methods/login/authentication.php
index 782ca9487..b15e2c048 100644
--- a/workflow/engine/methods/login/authentication.php
+++ b/workflow/engine/methods/login/authentication.php
@@ -31,6 +31,7 @@
 
 
 try {
+    
   $frm = $_POST['form'];
   $usr = '';
   $pwd = '';
@@ -74,7 +75,7 @@ try {
     case -5:
       G::SendTemporalMessage ('ID_AUTHENTICATION_SOURCE_INVALID', "warning");
       break;
-  }
+    }   
   $$sPwd= $pwd;
   
   //to avoid empty string in user field.  This will avoid a weird message "this row doesn't exist"
@@ -137,11 +138,11 @@ try {
   G::LoadClass('serverConfiguration');
   $oServerConf =& serverConf::getSingleton();
   $oServerConf->sucessfulLogin();
-
+  
   // Assign the uid of user to userloggedobj
   $RBAC->loadUserRolePermission($RBAC->sSystem, $uid);
   $res = $RBAC->userCanAccess('PM_LOGIN');
-  if ($res != 1 ) {
+   if ($res != 1 ) {
     if ($res == -2)
       G::SendTemporalMessage ('ID_USER_HAVENT_RIGHTS_SYSTEM', "error");
     else
@@ -195,18 +196,19 @@ try {
     $c = file_get_contents(PATH_DATA_SITE . PATH_SEP . '.server_info');
     if(md5($c) != md5($cput)){
       file_put_contents(PATH_DATA_SITE . PATH_SEP . '.server_info', $cput);
-    }
+       }
   }
 
   /* Check password using policy - Start */
   require_once 'classes/model/UsersProperties.php';
   $oUserProperty = new UsersProperties();
-  $aUserProperty = $oUserProperty->loadOrCreateIfNotExists($_SESSION['USER_LOGGED'], array('USR_PASSWORD_HISTORY' => serialize(array(md5($currentPwd)))));
+  $aUserProperty = $oUserProperty->loadOrCreateIfNotExists($_SESSION['USER_LOGGED'], array('USR_PASSWORD_HISTORY' => serialize(array(md5($currentPwd)))));  
   $aErrors       = $oUserProperty->validatePassword($_POST['form']['USR_PASSWORD'], $aUserProperty['USR_LAST_UPDATE_DATE'], $aUserProperty['USR_LOGGED_NEXT_TIME']);
-  if (!empty($aErrors)) {
-    if (!defined('NO_DISPLAY_USERNAME')) {
+
+   if (!empty($aErrors)) {
+     if (!defined('NO_DISPLAY_USERNAME')) {
       define('NO_DISPLAY_USERNAME', 1);
-    }
+    }    
     $aFields = array();
     $aFields['DESCRIPTION']  = '<span style="font-weight:normal;">';
     $aFields['DESCRIPTION'] .= G::LoadTranslation('ID_POLICY_ALERT').':<br /><br />';
@@ -236,9 +238,9 @@ try {
     G::RenderPage('publish');
     die;
   }
-  /* Check password using policy - End */
+   /* Check password using policy - End */
   if ( isset($_POST['form']['URL']) && $_POST['form']['URL'] != '') {
-    $sLocation = $_POST['form']['URL'];
+      $sLocation = $_POST['form']['URL'];
   }
   else {
     $sLocation = $oUserProperty->redirectTo($_SESSION['USER_LOGGED'], $lang);
@@ -251,6 +253,7 @@ try {
   $oHeadPublisher->assign('uriReq', $sLocation);
   G::RenderPage('publish', 'extJs');
   //G::header('Location: ' . $sLocation);
+  
   die;
 
 }