You can see the draft timetable for a module in the module catalogue - select a module and then click on the term hyperlink and there is a pop up timetable showing draft information where available.
Personal timetables for the 2012/13 academic year will be released on the tenth of September. These will include all lectures etc attended by all students on the module. Most stage 2 and 3 group events (seminars etc) will also be released at this time. Stage 1 group events will be released in Welcome week and week 1 of term depending on school and faculty.