If you have already registered you can just log in at www.imanengineer.org.uk using the username and password you picked when you registered. If you have forgotten your password then click on the ‘forgotten password’ link.
Engineers do not need to register at all as we’ve already done that for you. Just enter your username (usually ‘firstnamelastname’ all in lower case please) and the access code we sent you as your password.