Is there a definitive answer to the problem with smil presentation and the 7650 not showing the presentation (other than as options->view objects). We're developing MMS services and have tried quite many of the solutions proposed here in this forum.
We build the smil on the fly, and use the content-id header, not the content-location. Actually the problem only shows IF we have more than one picture in the MMS message, i.e. one text part and one picture shows ok. If the same message is sent with one additional picture and a simple smil (below), the terminal - 7650 in this case - complains that the message could not be shown. The content type for the MMMessage object itself is set to multipart/related.