ok.. when your at redfern, facing the exit, you turn right.. keep walking till you hit the set of lights then make a left (i think the street is abercrombie)... then keep walking past the shops and cross the road so taht your opposite the side where the shops are.... you will hit a set of lights and then make a right and voila, your at usyd. you should see the usyd sign and your home free!! LOL
its like a 5 minute walk..... and won't be that hard to find....