Finding your image;
Click on the year. Choose the section, British Eventing in British Eventing, Hunts, Hunt affiliated Combined Training and Hunt Affiliated Hunter Trials in Hunts, most other things under Riding Club, NSEA under Arena Eventing.
If there is more than 1 camera, then camera identification usually is: S = showjumping, W= water, X = xc. Y and or Z also = another xc camera