The permissions of users associated with your organisation can be seen and edited via the Organisation Settings and Organisation Accounts buttons on the dashboard. Both these buttons go to the same menu, but the latter goes straight to the Current Users.
The permissions are grouped as overall organisation permissions and the permissions relating to each certification scheme owned by the organisation, where applicable.
They are fairly self-explanatory and generally arranged in a hierarchy with the most important / far-reaching permissions listed first.
More details coming soon...