THURSDAY Prime Minister Costas Karamanlis to meet with his Turkish counterpart Recep Tayyip Erdogan within the framework of the Southeast European Cooperation Process (SEECP) summit in Thessaloniki. Bank Workers’ Federation (OTOE) holds an international seminar, as part of the 4th European Social Forum, on «Collective Labor Agreements and Labor Relations,» at 6 p.m. at the old Athens airport at Hellenikon. Tel. 210.364.7589. Hellenic Post employees stage a 24-hour strike over plans to list the Postal Savings Bank on the Athens Stock Exchange. At noon they will demonstrate in Kotzia Sq and then march to the Finance Ministry. President Karolos Papoulias to attend the 52nd meeting of university deans in Mytilene. To Sunday. ATEbank to hold extraordinary general meeting. The 4th European Social Forum begins at the Olympic venue at the old Athens airport at Hellenikon. To Sunday. FRIDAY Prime Minister Costas Karamanlis to visit Sparta. On Saturday he will go on to Messinia. Naftemboriki daily holds a conference on «Regional Convergence and Reinforcement of Entrepreneurship,» at 6 p.m. at the Pantelidis Hotel in Ptolemaida. Deputy Finance Minister Christos Folias to speak. Tel. 210.519.8148-9. Economy and Finance Minister Giorgos Alogoskoufis to attend Ecofin meeting in Brussels. Hellenic Bank Association holds an international conference on «Regulatory Compliance and Training: Emerging Challenges for the European Financial System,» at 9 a.m. at the Theodoros Karatzas Amphitheater of the National Bank of Greece, 82-84 Aeolou, Athens. President of the Hellenic Bank Association Takis Arapoglou to speak. Tel. 210.338.6548 or log on to www.eett.gr. The Central Union of Municipalities and Communities of Greece (KEDKE) holds a conference on «The Use of Information and Communication Technologies in the Promotion of Local Government and Development,» at 9.30 a.m. at the Capsis Beach Hotel in Iraklion, Crete. To Saturday. Tel. 210.389.9600 or log on to http://kedke.ntua.gr. SATURDAY European Social Forum members to demonstrate at 3 p.m. at Pedion tou Areos, Athens.