So, it seems that Visual Studio 2010 does not support SSRS projects. At least not old ones.. Does anyone know what the status on this situation is and whether one can author new
SQL Server 2008 R2 = SQL Server 2010 (ish)
"R2 doesn't integrate with Visual Studio 2010 as it targets VS 2008 only" read more here:
http://prologika.com/CS/blogs/blog/archive/2010/03/16/bids-integration-story-in-r2-the-good-the-bad-and-the-ugly.aspx