There is a problem using tinyMCE v.2.1.2 as Rich text inline-editor for sfSimpleCMS pages/slots and trying to insert a flash swf-movie to the slots content.
tinyMCE 2.1.2 strips out the necessary <object> and <embed> HTML code when updating the slots content to the database. So the saved HTML-code is totally wrong and the swf-movie doesn't appear in the slot. (See my forum post here...)
This failure is reported in the tinyMCE Wiki here ....
So I solved it installing the latest version 3.0.4.x of tinyMCE from Moxiecode here ... and the problem disappears.
Maybe Francois (or any other sfSimpleCMS developer) can check this issue and note it to the community (or to the documentation of the plugin).