Just write down what you intuitively feel to be the answer. Apparently some of the best writing comes from this exercise. The other advice which circulates strongly is the usefulness of keeping a journal. It is important to check this with your supervisor very early in your candidature as each Department has different requirement, even within the same Faculty. You shouldn't contemplate beginning a research degree without having decided on the bibliographic tool to use.
Different departments recommend different tools.
ITD provides a 'list' of computing support officers. You should make sure you have version 2.2 for Mac, or 2.3 for PC so that it works effectively with Word. You may find further useful information and links on the Library's EndNote web page. Styles enable you to format your thesis so that each different part or component e.g. quote, heading, table, is the same each time you use it. The time spent working through a manual or asking another staff member or student to show you how to use them is worth every minute, given the time it will save you when writing up.