Hi Edward, thanks for the answer.
Now this is solved, with the translations I am very happy.
But I have another problem. I state that I use Artio Joomsef 3.6.3 on Joomla 1.5.25.
GTranslate recently stopped working for two days for a license problem.
Before the stop Google has indexed more than thousand urls, in a couple of days.
After solved the licensing issue the translations are again always ok, but only indexes the (very few) non-sef urls.
I have not changed anything in any sense.
May depend on what? What can I try to do?