a DIVX player will appear and the video will start playing in it. 
No player?
you need to install the divx player (PC, MAC) to play this
Do Not Update to the latest version of the DIVX player:
you must not use the latest version of the divx web player (the divx plus web player version 2.0) to stream 2shared files in your browser. if you do, it will stay at "connecting" for a veeeery long time before it starts playing (if it ever does, i was never patient enough to verify it). To solve that problem, you need to stick to the previous version of the divx web player. so please do not upload your divx web player and go back to the previous version if you already have. here are some links to older versions of the divx player => PC, MAC
maybe divx will fix that in their next patch or maybe i will find other ways to progessively playback avi files in the browser, but in the meantime, please use a divx web player version older than 2.0 to play 2shared files in the browser.
No Sound?
some divx videos need the AC3 sound filter for the sound to work
You can also use this to create links by appending the megaupload link after http://megaallday.com/mu?link=
this system can also be used as a bookmark. instead of copying the bookmarklet and pasting it in the address bar of the megaupload page when the download is ready, you can just bookmark the bookmarklet and use it on any megaupload page by hitting it in your bookmarks from the megavideo page to stream a video from megaupload without having to come back to this page to grab the bookmarklet each time. But note that this bookmarket makes the file run in a divx player so it can only play files that would play in a divx player such as avi and divx video formats.