swfupload problems!

[eluser]Mat-Moo[/eluser]
Well spent a bit more time, and no 404 any more, but no file uploaded either. I'm wondering if it's to do with the session id, as I autoload session already. So do I need the session_start() and how can I check the session_id is correct?

Edit : The session ID in flash and my database session where different. I've changed that now to use $data['session_id'] = $this->session->userdata('session_id'); and this is now showing the correct session id in the form, but after submitting the flash form I'm finding a second database session record with a different ID.