I sent a PM to Techie-Micheal with the information but I forgot to mention that the user who didn't answer me (didn't even receive the PM as it's still in the outgoing folder) was
Pato[100%Q]. Who answered me was
Alexis, telling me I could take his place as the updater of the Spanish language pack. He told me he could notify it to the Official Team Support if he were asked to.
One more thing I forgot to tell you: my version was made together with an Argentinian user called
CG_ar who made the most important part of the job. I just made my version to 'academical' or official Spanish and he made the 'Argentinian' version. He told me he had tried to contact psoFXT too, a few months ago, and when Acyd Burn had the responsability to manage the language packs we wrote him too but we had no answers.
CG_ar sent me his version, and I use it in my forums, for Argentinian users to be able to choose it if they want to, but I think you could also contact him to see if he's still interested in being the updater of that version.
Greetings.
EDIT: CG_ar has told me he talked to the updater of the Spanish_Argentina version, Angel Olivera. The author of the present language version told him he still wanted to be the updater although he apreciated his version and would test it, and if he liked it he would update it and insert CG_ar's name as the newest developer, but that happened 6 weeks ago and I've had no more news from Angel Olivera nor CG_ar.