i've tryed with adding the class, but was unsuccessfull. so i changed up the product.tpl file and worked pretty well, the only problem is about a grid that is still there, i' ll try to clean it up asap, i really think is about the theme the "unvisible problem", anyway thanks for your help ^^ i hope i can fix it alone now! Otherwise i' m going to quote you tomorrow ^^
thanks for your help pishkus!