Simply enter your email address (the one you used when you created your Studyworks account) and password.
Click on the 'Forget your password?' link next to the Help link. You will then enter your email address (again, the address you used when you created your Studyworks account). We will create a new password for you and email it to you. You can then use that password to log in. After that, you can manually change your password to something you will easily remember.