Here is the contents of the wiki, arranged in some sort of sensible order to make things easier to find:

Introduction to the Society

Various pages about the society in general, rehearsal schedules etc.
Idiot's Guide To Running The G&S Society
Noteworthy People

Production

Venue, show week, technical equipment etc.
Central Hall
Show Week

Committee

Introduction to the committee postions
Chair
Secretary
Treasurer
Press & Publicity
Ordinary Members
Webmaster
Director
Musical Director
Technical Director

Past Events

Probably a quick link to a page about shows.
Shows