Refer to the linked list on who has volunteered to do what at the Group Exercise. If you want to be a crew leader or driver, or be involved with the ICCs on the day, please contact Geoff, Andrew, David or Michael.
PS: I am trialling Google Docs in the above link to provide more dynamic documents. You will see the latest version when you click on it, rather than a static saved version frmo whenever I post it. Please provide feedback as to whether this works OK or not.