diff --git a/repository/Grafoscopio/GrafoscopioBrowser.class.st b/repository/Grafoscopio/GrafoscopioBrowser.class.st
index d8fc748..3845b6b 100644
--- a/repository/Grafoscopio/GrafoscopioBrowser.class.st
+++ b/repository/Grafoscopio/GrafoscopioBrowser.class.st
@@ -493,6 +493,47 @@ GrafoscopioBrowser >> installPandoc [
 	
 ]
 
+{ #category : #'graphical interface' }
+GrafoscopioBrowser >> messageAbout [
+	"Shows the author, license, sponsors and main contributors to the project and point to further documentation on the web"
+
+	UIManager default alert: 
+		'Grafosocpio', 
+		(String with: Character cr),
+		'(c) Copyright 2014 by Offray Vladimir Luna Cárdenas',
+		(String with: Character cr),
+		'Covered under MIT license.',
+		(String with: Character cr),
+		(String with: Character cr),
+		'SPONSORS:',
+		(String with: Character cr),
+		'mutabiT | www.mutabit.com  ',
+		(String with: Character cr),		
+		'Fundación Universitaria Los Libertadores | www.ulibertadores.edu.co  ',
+		(String with: Character cr),
+		(String with: Character cr),
+		'For further details and versions go to:',
+		(String with: Character cr),		
+		(String with: Character cr),		
+		'http://mutabit.com/grafoscopio'
+		
+		title: 'About Grafoscopio'.
+]
+
+{ #category : #'graphical interface' }
+GrafoscopioBrowser >> messageNotImplementedYet [
+	"Shows that a feature is not implemeted and point to further documentation on the web"
+
+	UIManager default abort: 
+		'Esta funcionalidad aún no está implementada!', 
+		(String with: Character cr),
+		'Para información sobre futuras versiones, por favor visite:',
+		(String with: Character cr),
+		(String with: Character cr), 
+		'http://mutabit.com/grafoscopio'
+		title: 'No implementado aún'.
+]
+
 { #category : #'graphical interface' }
 GrafoscopioBrowser >> open [
 	"Opens a new browser with a default tree and assigns a default draft file for storing it.
@@ -947,15 +988,15 @@ GrafoscopioBrowser >> treeOn: constructor [
 		act: [  ]; entitled: 'Etiquetar > como: Texto';"
 		act: [self enableRepository] entitled: 'Activar' categorized: 'Proyecto';
 		act: [self addFileToRepository] entitled: 'Agregar archivo' categorized: 'Proyecto';
-		act: [:x | x printString inspect] entitled: 'Eliminar archivo' categorized: 'Proyecto';
+		act: [self messageNotImplementedYet] entitled: 'Eliminar archivo' categorized: 'Proyecto';
 		act: [self repositoryCommit] entitled: 'Enviar al histórico' categorized: 'Proyecto';
 		act: [self repositoryCredentials] entitled: 'Acreditarse' categorized: 'Proyecto';
-		act: [self updateSystem] entitled: 'Actualizar' categorized: 'Grafoscopio';
-		act: [self updateSystem] entitled: 'Actualizar prerrequisitos' categorized: 'Grafoscopio';
-		act: [:x | x printString inspect] entitled: 'Herramientas externas > Actualizar' categorized: 'Grafoscopio';
+		act: [self updateGrafoscopio] entitled: 'Actualizar' categorized: 'Grafoscopio';
+		act: [self updatePrerrequisites] entitled: 'Actualizar prerrequisitos' categorized: 'Grafoscopio';
+		act: [self messageNotImplementedYet] entitled: 'Herramientas externas > Actualizar' categorized: 'Grafoscopio';
 		act: [self configurePandoc] entitled: 'Herramientas externas > Definir ruta a pandoc' categorized: 'Grafoscopio';
-		act: [:x | x printString inspect] entitled: 'Herramientas externas > Definir ruta a fossil' categorized: 'Grafoscopio';		
-		act: [:x | x printString inspect] entitled: 'Acerca de...' categorized: 'Grafoscopio'.
+		act: [self messageNotImplementedYet] entitled: 'Herramientas externas > Definir ruta a fossil' categorized: 'Grafoscopio';		
+		act: [self messageAbout] entitled: 'Acerca de...' categorized: 'Grafoscopio'.
 
 ]