Well, It seems Lasors say what I want to hear, and I think I know why it says so reading very carefully JAR-FCL 1.250 .
Point a) is refrering to pre-requisites for training for those who are going to obtain a first multipilot type rating, and in fact is titled just like that. So there is no doubt all that stuff is necessary and nothing is under discussion.
But, when it comes to point d), for those who want to add an additional ( second or third) multipilot type rating, now it says " the issue of an additional multi-pilot type ratings requires a valid multi-engine instrument rating". So, this is not a pre-requisite for training anymore, my understanding is that you´ve got to have it (IR) if you want it (TR) added.
Now comes the worst part...at least for me.....I´ve got to deal with the spanish DGAC, and guess what, they´ve translated this paragraph into our own legal system as " Training for additional multipilot type ratings requires the possesion of a multi-engine instrument rating". They might have issued an amendment to this point....I don´t think so though.
I don´t know, I think I´ve been thinking over this matter too much. Tomorrow I´ll call DGAC. Anyway, thank you all.