Index: manage_user_update.php
===================================================================
--- manage_user_update.php	(revision 5530)
+++ manage_user_update.php	(working copy)
@@ -56,7 +56,7 @@
 
     # strip extra space from real name
     $t_realname = preg_replace('/\s+/', ' ', $f_realname);
-    
+
 	user_ensure_name_valid( $f_username );
 	user_ensure_realname_valid( $f_realname );
 	user_ensure_realname_unique( $f_username, $f_realname );
@@ -66,7 +66,7 @@
 	email_ensure_not_disposable( $f_email );
 
 	$c_email		= $f_email;
-	$c_username		= $t_username;
+	$c_username		= $f_username;
 	$c_realname		= $f_realname;
 	$c_protected	= db_prepare_bool( $f_protected );
 	$c_enabled		= db_prepare_bool( $f_enabled );
Index: core/database_api.php
===================================================================
--- core/database_api.php	(revision 5530)
+++ core/database_api.php	(working copy)
@@ -445,11 +445,11 @@
 	 * @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);
 		}
@@ -713,7 +713,26 @@
 	 * @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;
+		$t_db_type = config_get_global( 'db_type' );
+
+		switch( $t_db_type ) {
+			case 'postgres':
+			case 'postgres64':
+			case 'postgres7':
+			case 'pgsql':
+				if( $p_bool )
+				{
+					return 'true';
+				}
+				else
+				{
+					return 'false';
+				}
+				break;
+			default:
+				return (int)(bool)$p_bool;
+				break;
+		}
 	}
 
 	/**
Index: core/email_queue_api.php
===================================================================
--- core/email_queue_api.php	(revision 5530)
+++ core/email_queue_api.php	(working copy)
@@ -91,7 +91,7 @@
 					)";
 		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" );
 	}
 
 	# --------------------
Index: core/user_api.php
===================================================================
--- core/user_api.php	(revision 5530)
+++ core/user_api.php	(working copy)
@@ -460,7 +460,7 @@
 		# 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