Finally, Silverlight 2 Beta 2 is out, if you are developer you can download Silverlight 2 Beta 2 chainer here. Silverlight runtime can be found here.
Most valuable source of information about this release can be found on ScottGu’s Blog where you can find description of Beta 2 features. But before I could install Beta 2, I had to manually uninstall some fixes from my Vista, here you can find answers for your problems.And finally if everything worked, install latest Expression Blend and Deep Zoom Composer.

Unfortunately after upgrade, it seems that all Beta 1 applications stopped to work, at last for me, I tried to quickly recompile my project, but I get a lots of errors, so I need little more time to restore it to live, until then you can play Buddy Knavery game.