Yahoo Flickr opened video upload feature to Pro user, here is a test movie in MOV format I uploaded last night. If you're Mozilla Firefox user and for some reasons installed and enabled Access Flickr! extension, you probably can't play the video, maybe you would like to switch to other browser as IE/Safari/Opera, or just disable the Access Flickr! extension, or, turn on IETab extension to shell Firefox with IE core. (via)
This is very annoying that Joomla 1.5.2 falls into a 404-twilight-zone while enable Search Engine Friendly URL option in Global Configuration, I've follow up a same-situation-call-for-help on official forum, haven't received any substantial answer.
I haven't got any clue on this myself while still being in a diarrhea torment, hard to focus on source code reading -_||