This module has the potential to fill the form theming gap. For now it is still in alpha but it has potential.
It uses jquery to arrange your form elements. Takes into account fieldset (but not the field in the fieldsets).
It does not integrate with the multistep module.
In this custom jquery interface scrollto is used to maintain scrolling when the middle collumn row has a focus. The middle collumns focus is determined by either clicking or tabbing through the right form. So when the we would tab up the element receiving the yellow class would get out of sight. Using the scrollto plugin allows us to keep the row in sight. (Going from screenshot one to two only using shift-tab)
The interface is build to submit results by athlete and by test using the same jquery.