Hi all! Hope someone can help me.
I've installed a SS 3.0.5, the translatable module, the blog module and follow this post http://www.ssbits.com/tutorials/2011/using-translatable-to-create-a-simple-multilingual-site/#PageComment_2460. Everything seems to work fine but the template blog that doesn't change the language ("posted by...", "Read the full post", the date format, etc).

I read a lot of posts but I am too dummy to solve the problem.
Can someone help me?

In my my site/_config.php I've set:
i18n::set_locale('de_DE');
Translatable::set_default_locale('de_DE');
Translatable::set_allowed_locales(array('de_DE', 'it_IT', 'en_US'));
// Important: Call add_extension() after setting the default locale
Object::add_extension('SiteTree', 'Translatable');
Object::add_extension('SiteConfig', 'Translatable');

But still the template doesn't change when I switch to another language.

Any idea?

Thanks in advance.
Pier

Make "lang" folder under mysite

and make the locale file like de_DE.php in it

and add to that files lines like so:

<?php

global $lang;

$lang['de_DE']['BlogTree.ss']['VIEWINGPOSTEDIN'] = 'the translation for: Viewing entries posted in';
$lang['de_DE']['otherblogtemplate.ss']['SOMEODTHERTRANSLATEBLELINE'] = 'Some other translation for the line';

?>

Also add this lines to your mysite/code/Page.php

if($this->dataRecord->hasExtension('Translatable')) {
         i18n::set_locale($this->dataRecord->Locale);
} 
}

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Hi Webdoc,
many thanks for your reply.

I tryed to copy the lang folder of the blog module (where inside there is also a de_DE.php file) in mysite folder.
But when I've added the code you told me to the Page.php file, a blank page is shown.
:(

I solved the problem of the blog translation.
In the lang folder it was missing the YAML file I fond at https://github.com/silverstripe/silverstripe-blog.
In fact, "by default, SilverStripe 3.x uses a YAML format" (http://doc.silverstripe.org/framework/en/topics/i18n).

So:
1.
In my my site/_config.php I've set:

i18n::set_locale('de_DE'); 
Translatable::set_default_locale('de_DE'); 
Translatable::set_allowed_locales(array('de_DE', 'it_IT', 'en_US')); 
// Important: Call add_extension() after setting the default locale 
Object::add_extension('SiteTree', 'Translatable'); 
Object::add_extension('SiteConfig', 'Translatable');

2.
I added the following to my Page_Controller's init() function:

if($this->dataRecord->hasExtension('Translatable')) {
        i18n::set_locale($this->dataRecord->Locale);
    }

3.
I copied the de.yml file to the lang folder of the blog module.
:)