I think Forms CS does not support creation of an Adaptive Form compliant to the XFA form. However, you can create an Adaptive Form out of a given XFA form by using the Automated Form Conversion Service. XFA form is also used as a Document of Record bound to the given Adaptive Form such that if you have to send a regulatory or otherwise PDF document to the person filling the form, you could get this PDF document easily out of the Adaptive Form data submission.