diff -ruaN mantisbt-svn5752.orig/core/database_api.php mantisbt-svn5752/core/database_api.php
--- mantisbt-svn5752.orig/core/database_api.php	2008-10-11 00:10:54.000000000 +0300
+++ mantisbt-svn5752/core/database_api.php	2009-05-16 19:16:50.000000000 +0300
@@ -285,6 +285,8 @@
 		for( $i = 0;$i < $params;$i++ ) {
 			if( $arr_parms[$i] === false ) {
 				$arr_parms[$i] = 0;
+			} else if( $arr_parms[$i] === true ) {
+				$arr_parms[$i] = 1;
 			}
 		}
 	}
@@ -462,11 +464,11 @@
  * @param string $p_table a valid database table name
  * @return int last successful insert id
  */
-function db_insert_id( $p_table = null ) {
+function db_insert_id($p_table = null, $p_field = "id") {
 	global $g_db;
 
 	if( isset( $p_table ) && db_is_pgsql() ) {
-		$query = "SELECT currval('" . $p_table . "_id_seq')";
+		$query = "SELECT currval('".$p_table."_".$p_field."_seq')";
 		$result = db_query_bound( $query );
 		return db_result( $result );
 	}
@@ -739,7 +741,20 @@
  * @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
  */
 function db_prepare_bool( $p_bool ) {
-	return (int) (bool) $p_bool;
+	if (db_is_pgsql()) {
+		if( $p_bool )
+		{
+			return 'true';
+		}
+		else
+		{
+			return 'false';
+		}
+	}
+	else
+	{
+		return (int)(bool)$p_bool;
+	}
 }
 
 /**
diff -ruaN mantisbt-svn5752.orig/core/email_queue_api.php mantisbt-svn5752/core/email_queue_api.php
--- mantisbt-svn5752.orig/core/email_queue_api.php	2008-10-11 00:10:54.000000000 +0300
+++ mantisbt-svn5752/core/email_queue_api.php	2009-05-16 18:26:06.000000000 +0300
@@ -88,7 +88,7 @@
 					)";
 	db_query_bound( $query, Array( $c_email, $c_subject, $c_body, db_now(), $c_metadata ) );
 
-	return db_insert_id( $t_email_table );
+	return db_insert_id( $t_email_table, "email_id" );
 }
 
 function email_queue_row_to_object( $p_row ) {
diff -ruaN mantisbt-svn5752.orig/core/user_api.php mantisbt-svn5752/core/user_api.php
--- mantisbt-svn5752.orig/core/user_api.php	2008-10-25 19:32:32.000000000 +0300
+++ mantisbt-svn5752/core/user_api.php	2009-05-16 18:25:32.000000000 +0300
@@ -469,7 +469,7 @@
 	# Users are added with protected set to FALSE in order to be able to update
 	# preferences.  Now set the real value of protected.
 	if( $c_protected ) {
-		user_set_field( $t_user_id, 'protected', 1 );
+		user_set_field( $t_user_id, 'protected', $c_protected );
 	}
 
 	# Send notification email