IV.18 The Advisory Committee enquired about the steps taken to implement the provisions of paragraph 13 of General Assembly resolution 57/262 of 20 December 2002 , in which it requested the Secretary-General to strengthen the Small Island Developing States Unit , including through the regularization of the current post of the Interregional Adviser for Small Island Developing States . IV.19 The Advisory Committee was informed that a qualified expert from a small island developing State had been identified to fill the position of Chief of the Small Island Developing States Unit , that a P-2 post had been deployed to strengthen the Unit and that two extrabudgetary posts , funded from trust funds , would work on the Small Island Developing States Information Network ( SIDSnet ) .