As some of you know there are four additional campaigns to Tzar, officially released only in Spain and Italy.

Tzar: El Cid y la Reconquista (only in Spain)
Tzar: El Rey Arturo y Excalibur (only in Spain & Italy)
Tzar: El Imperio de Gengis Khan (only in Spain & Italy)
Tzar: Los Dominios de la Magia (only in Spain)

What I want to ask is - It's ok to post here the links to the campaign files, making them available to be translated by the community?

I think, as long as you aren't linking to torrent sites and the campaign files do not work standalone, it is okay to do this because (I assume) it's very difficult to acquire these otherwise. (I believe somebody did something similar with a Tomb Raider expansion that wasn't officially included.) Upload the files to a relatively reputable site, like MediaFire.

I'd recommend making a whole new thread for the link, though, so it can perhaps be stickied. Call it something like, "How to get 4 additional Spain and Italy campaigns working (link included)", perhaps.

Weren't those fan-made? If so, I guess we can consider them to be mods.