Case T-184/06: Judgment of the Court of First Instance (Second Chamber) of 12 September 2007 — Commission v Internet Commerce Network and Dane-Elec Memory (Arbitration clause — Contract concluded in the framework of a special programme in the field of information society technologies (Crossmarc project) — Non-performance of the contract — Repayment of the advance paid by the Community — At-first-demand guarantee of the contractual obligations — Default procedure)