Download link will be emailed to you. Free version has full functionality, but allows only 1 support agent / email account
Once you define them in settings, custom fields are accessible above each support ticket. Custom fields are a great time savers. They allow you to attach important information about a client to his email address and thus minimize time consuming searching of old tickets for the needed information
In SupportCenter, custom fields are completely customizable under Settings -> Custom -> Fields, where you can define: