Expression Blend Service Pack 1 for VS2008
The Service Pack 1 for Expression Blend contains several fixes and changes, and also optimize Visual Studio 2008 support.
Download link:
http://www.microsoft.com/expression/products/download.aspx?key=blendsp1
Read the complete post at http://weblogs.asp.net/lduveau/archive/2007/12/01/expression-blend-service-pack-1-for-vs2008.aspx