Below is a satellite image of the RAL site (from Google maps).
All of the talks currently on the agenda are scheduled to take place in conference rooms 12 and 13. These are located in building R68 which has been outlined in red on the map. When you enter R68 (from the north entrance), the conference rooms are on your right as you pass through the glass double doors.
Also outlined are the main reception building (green) and visitors carpark (blue).