Here's our main article for constructing and editing the event registration form. While arrangement options are limited, you can reorganize the order of the different sections (personal info, business info, custom info 1, etc.)
If you'd like live, 1:1 assistance, I'd advise calling our general support line. If you'd like they can also screenshare for just your Constant Contact screen specifically.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ William A Community & Social Media Support