Hi Kurt and Michael and welcome to the forum,
Try creating the form "from the database". Then, submit should be available. InfoPath does not allow you to submit forms that are created using a separate XML schema (XSD). For that, you can use our DBXL Web service which adds a mapping layer between forms and DBs to make it easy for you to create and store forms in SQL without having to worry about keeping the XML schema and relational schema in perfect correspondence.
Patrick Halstead
Project Manager at Qdabra