Here is a map of the campus.
The address of the building Exactum, where all the worshop is held, is Pietari Kalmin katu 5. To get to Exactum from Töölö Towers (address Pohjoinen Hesperiankatu 23), you can use buss number 70 or tram number 8.
To find the timetables for busses and trams you can use the HSL Journey Planner.
Here you can find information on how to get to Töölö Towers from the airport. The dinner is held in Restaurant Elite which is really close to Töölö Towers. It is in the corner of Eteläinen Hesperiankatu and Runeberginkatu.