Contact details of contestants

Hi, when people access the page they are being asked for their name. However I need to collect their email addresses as well. I thought I'd set it to do that but can no longer find the function. I can't contact the winner without knowing who they are and what their email address is. How do I fix this?
Thanks
Sam

In the advanced step you can define additional attributes for voters as well as submitters. These can be anything you like.