Use publish view to publish the singe page you are working on. You do not want to do a full site publish as you do not want your "test/temp" page to appear in the menu structure on every page of the web site, you only want to edit and test to get it working without goofing up the original page that works now.
You can do a local publish and test or upload and test as the action is a full URL so the form should work on your computer just as well as on the server. You can use WS_FTP to upload and test it if you would rather do that