You need to create a login account to register for events or see content not publically available. Your initial password will be sent to the email address you give and access to members areas of the site is subject to manual approval by a site administrator.
Create a new access account using this form. Full membership access may be granted or denied by the site administrator. Until then you will be able to update your profile or set your password after logging in, but full member access will not be available.