Well, if its not even showing up then there is some problem with your device... And to use it as screensaver (even if you manage to view it in gallery) just go to menu - settings - themes - energy saving - animation - browse for .swf file!
sorry, if you get this error, then you have to forget about this app in this case... of course if you dont have another version of this app already installed...
ammm, kinda amazing never seen so good quality video coming from mobile phone... kinda hard to believe that its straight from N8... probably a bit tweaking, even though Nokia deny that but Nokia likes to show things a lot better than they really are... Nice one, MobileOne!