Amended proposal for a European Parliament and Council Regulation amending, for the benefit of European parliamentary assistants, Council Regulation (EEC) No. 1408/71 on the application of social security schemes to employed persons, self-employed persons and to members of their families moving within the Community, and Council Regulation (EEC) No. 574/72 laying down the procedure for implementing Regulation (EEC) No. 1408/71 (COM(2002) 405 final)