Ok. I've fixed duplicate notifications (new notification system needs a received response, like message)
Also, I've make a little fix so you can create group chats
Pictures stills broken, but the symbian version I'm testing on my C7 has the same problem. So maybe I can't fix it until a new symbian version comes out. Or maybe it's just a server problem and it will start working soon.

EDIT: @TMavica:
Sorry I forgot that. Will test it now.