Can Seaside applications support REST style calls?

I imagine the answer is yes, so the problem should probably be "how can I get seaside to support rest calls?"

I am thinking of building some components, of a site, in Flash. Ideally, I would like the user to be able to submit form data through the Flash object. So, I need to provide some URL handling on the server side. Is there a object I should use for this?

It is possible that this relates to my other query.  In the Seaside tutorial image there is Lightbox test.  The Dispatcher doesn't seem to have a registered RootObject for this entry, and yet it still works. As far as I can tell, it just calls the SULightBoxTest.  However, I can't work out how to register an object in that way. 

Cheers
AB