Problems with localization of magento "ultimo" theme

Hi everyone,

I am really getting upset. I bought here the theme “ultimo”, which has worked to perfection, but the localization didn’t work in one case! Yes, crazy, only one, but what an important one! Special Price! I already tried everything! Even to replace all my .csv originals with the translated one, for the case where it was getting the translation from the wrong place. I don’t know what else to do. Any ideas, suggestions?

the site is:

Many thanks for any support.