URL: http://www.microsoft.com/silverlight/resources/installationfiles.aspx?v=2.0

SDK for Silverlight 2 Beta 1 is available at http://www.microsoft.com/downloads/details.aspx?FamilyID=1840cab5-196c-4264-b55d-562242a72625&DisplayLang=en

You can download Internet Explorer 8 Beta 1 for Windows Vista, Server 2008, XP2, Server 2003 Sp2 from here

Screenshots of installation and new features are available at techtalkz.

How do I make my site ‘light up’ with Internet Explorer 8?