[imp] Lenguage Problem

[Guillermo Castellini]

I have a lenguage problem... I need horde + imp + turba in spanish lenguage.
I have horde 2.1, IMP 3.1 and turba 1.1. I edit this files...

./horde/config/lang.php
$nls['defaults']['language'] = 'es_ES';

./horde/config/prefs.php
$_prefs['language'] = array(
    'value' => 'es_ES',

./horde/imp/config/prefs.php
$_prefs['language'] = array(
    'value' => 'es_ES',

./horde/turba/config/prefs.php
$_prefs['language']	=	array(
'value'	=>	'es_ES',
'locked'	=>	false,

but any pages have a english language...
have anybody if i edit the correct files?
Thanks' a lot...