Hey Kelly,
If you shrink the width of the are for the form in the LP editor, then the form will become vertical, but will run into the verbiage below. You may want to create your own 2.0 form to use there so that you can keep it vertical, keep the requirement of the field (First Name, Last Name, etc.) in line, and have more flexibility with the button to keep it within the template area.
Hopefully that made sense!