Joined Cases T-265/04, T-292/04 and T-504/04: Judgment of the Court of First Instance of 4 March 2009 — Tirrenia di Navigazione and Others v Commission (State aid — Maritime transport — Subsidies paid by the Italian authorities to regional undertakings — Decision declaring the aid in part compatible and in part incompatible with the common market — Action for annulment — Admissibility — Legal interest in bringing proceedings — New or existing aid — Duty to state reasons — Article 4(3) of Regulation (EEC) No 3577/92)