The official site is on the air. This link goes to the English version. The event beings on September 27. It's a predictably heavy website, also chock full of historical, typographical, and every other type of mistake you can think of, in both the Spanish and English versions. (Maybe "Vishwanathan" represents a Barcelona accent?) As for the "history of chess" page, that popping sound you just heard was Edward Winter's head exploding. They plan to run a live move broadcast from a slow site hosted in Argentina, which should hold up for around 19 seconds.
It's a pretty site and I do very much like the tango-themed official logo. The building where the event will take place is still under construction. The event hasn't gotten much attention in the national press, surprisingly. The local paper "Diario de la Republica" is covering it, which isn't a surprise since I believe it is still owned by the local ruling Saá family that is behind the tournament's support. There is a heavyweight political battle going on right now between President Kirchner and his rival Duhalde that is getting most of the ink in the national press these days.
There is nothing about rules or regulations, most of which were already covered by FIDE's release (.doc) about the event. The classical seven-hour time control is the most relevant. It's not too late to apply Corsican anti-short-draw rules.