SharePoint Workspace requires form templates to use the 'submit to hosting environment' submit option, and to use a submit ...

SharePoint Workspace requires form templates to use the 'submit to hosting environment' submit option, and to use a submit connection.  To set these options, open the form template in InfoPath, go to the Designer, select Submit Options, click 'Allow users to submit this form', select 'Hosting environment' from the drop-down menu, click the Add button, and accept 'Main submit' as the name of the data connection.