Can I add eny new pictures to icons (items).. I tryd but i didnt see nothing in game. Is there eny tricks or somth..?

You need to import the new icons through the material base (press F10 to pull it up), and then you need to make an item in the database (press F9 to pull it up) that uses that icon.

it would also be good to point out that if you have a version of rpg maker below xp then you wont be able todo what saber just said. nect time put the version in the title