First of all, sorry for my bad english, I hope you'll understand me.
So, I installed the latest version yesterday, 2.0.3. But everything was in english and I wanted it in swedish. So I downloaded the sv_SV.mo here http://svn.automattic.com/wordpress-i18n/sv_SE/trunk/messages/
And then I read the instructions here: http://codex.wordpress.org/Installing_WordPress_in_Your_Language
I think I did everything right. I wrote sv_SV in the wp-config.php file. Then I created a folder in wp-includes named "languages" and then I uploaded the sv_SV.mo file there.
Then I went to my blog but everything was still in english and I didn't find a place to change language.
What did I do wrong?