In the Online Registrations area there is the ability to search by;
i) Form name
ii) Registrants name
iii) Transaction Reference (this is the SP reference number that is system generated for each registration and is displayed on each registration confirmation email).
To do this, click on Dashboard.
Click on Online Registrations.
Depending on the information you have, you can then enter either the form's name or the registrant's or a registration reference number and click on the search icon (magnifying glass icon).
The registration form with a matching name or registrant's name/reference number will then display in the results.