As of now there is no way to sort the custom fields on the customer portal side when they are creating a ticket. The custom fields are sorted in the order that they were created. When you arrange them in the admin custom field section, it arranges correctly after the ticket has been made. Can you make it so that however you arrange the fields, is represented on the customer portal ticket creation side? Can you add a, (make a copy), feature for custom fields similarly to the quick reply templates?