Thats great! You're off to a great start. When you add your roster, any players who aren't already registered for CaptainU will receive an invite to create a profile. The email invite will be sent to the email you provided for them on your roster.
If you need to resend this email, you can easily do so by clicking the "Remind athlete to create profile" button to the right of any unregistered athlete's name. This will send out another email invite to every unregistered player on your roster.
The videos below have instructions on how your Athletes can edit their profiles and add pictures and video: