This page has moved to: http://code.google.com/p/swfobject/wiki/documentation
A Japanese translation by Shuhei Terai can be found at http://mtl.recruit.co.jp/blog/2007/10/swfobject_v20.html
An Italian translation by Luka M. can be found at http://www.magnificaweb.it/swfobject-2/
Here's the German translation by Powerflasher: http://blog.powerflasher.de/swfobject2/
The following libraries have confirmed to be SWFObject 2.0 compatible:
SWFAddress 2.0 for deeplinking: http://www.asual.com/swfaddress/
AS3.0 MouseWheel? on Mac OS X: http://blog.pixelbreaker.com/flash/as30-mousewheel-on-mac-os-x/
swffit for Flash resizing: http://swffit.millermedeiros.com/
At the migration tips from SWFObject 1.5 you write that "It is now preferred to insert all script blocks in the head of your HTML page". Is this absolutely necessary or just a recommendation? In other words: Do I have to expect any shortcomings if I put the script just below (or above?) the HTML parts?
Inserting all script blocks in the head of your HTML page is a recommendation. Adding your scripts in the body of your page may have visual impact (e.g. flashes of replaced alternative content), because your JavaScript? code will be executed later. All depends on your implementation, really.
A swedish translation by Seoserver can be found at http://www.seoserver.se/labb/flash/swfobject/
A short feedback on expressinstall in SWFobject 2: If don't want expressinstall (did not work smoothly on a mac the last time I tried it) you need to write false instead of the URL string. This does not look obvious to me as one is a string and the other a boolean. When I first had "" in the SWFObject variables - which I thought was logical - the SWFobject failed in correctly recognizing the flash- version at all. Why not allowing "" also and not only false as a correct declaration?

I'v translated this doc to Chinese at http://farthinker.cn/2007/12/27/swfobject-2_0-doc-translation/. I hope it is of help : ) Thank you for your great work on SWFObject. Best regards.