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I have checked both of your site and it has something to do with your custom permalinks because it does not use the recommended /%postname%/. Please use the recommended /%postname%/ as mentioned on...

You need to create a "languages" folder for the language pack to work and so you may check this tutorial http://docs.appthemes.com/tutorials/using-theme-language-files/.

I'm glad you have got to solve this problem.
Thanks for updating the thread.

you have translate wordpress too?