In the first time, sorry if my question its "stupid".
In my older distro (LM 17.x KDE) also uses transmission and are in spanish.
A few weeks ago, I change my distro to Maui, in this, also use Transmission, but are in english.
I search a packages for spanish transmission and I don't view any.
I have installed only this 2 packages:
transmission-common
and
transmission-qt
My system is in spanish, but can't set transmission in spanish.
Regards.