thank you guys, i really appreciate your interest in this!!
actually I already have a "product list attributes" module which shows a dropdown/popup with all the product's attributes and the visitor can even add to cart, ok. But what i want is something much more simple than that. For example, for those products that doesn't have attributes (only one single price) i want the "attribute name" related to that price showed right after (under) the price... only the attribute name for simple and quick conference, and not a dropdown add-to-cart list or something like that (i have this function already). Maybe some simple .tpl modification??