Currently Visual Studio 2005 is still in its beta phase.  We will release a product to work with Visual Studio 2005 after it (VS) releases.  Please see the following forum posts:
http://forums.ni.com/ni/board/message?board.id=232&message.id=1453&requireLogin=False
http://forums.ni.com/ni/board/message?board.id=232&message.id=1735&requireLogin=False
Thank you
Nandini
NI