We need help with designing a workshop application form

Sure, we can help. Please provide us the details of the design in this thread, and we'll help you work on it. If you have the design sample, that would be better. 

Note that we have a theme store where you can use a theme for free. Please check here https://www.jotform.com/theme-store/. 

Guide: https://www.jotform.com/help/184-How-to-Apply-a-Theme-to-Your-Form.