Thas for your help. The translations are working like a charm but we are still having a problem with the URL. When we click on the English flag we are being redirected to www.tvsport.es/en
and this URL is not working and is returning a 404 page. In the other hand, if we write the url en.tvsport.es then the english page is returned and the edit function (with language_edit=1 querystring) works great.
Could you give us any solution on the flag problem?
Thanks in advance,