It is not possible to import flash into Sun Java Studio Creator. However you could wrap the flash plug in inside a JSF component and use the JSF component in JSC application. For example the Google Map viewer AJAX component is wrapped in a JSF component in the AJAX complib:
http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/aja xmapviewer.html
HTH,
Sandip