In order to receive payment, Teaching Assistants must register each semester for every course in which they are working. The first payment will not be issued until after the add/drop period, February 15th.
The Library (http://www.som.yale.edu/ssl/) site on CampusNet can save many hours of fruitless searching, especially if you begin your search by clicking on "Frequently Asked Questions" (FAQ'S) on the sidebar. FAQ's contains essential information about using the library as well as a run down on how to find the full text of newspaper and journal articles without leaving your home or office. Taking a few minutes to read this page will save loads of time in the future.