After a recent MS update, when I attempted to create a new project in Visual Studio 2008, on the left side of the status bar, it stated that the creation of the new project failed.
I followed the instructions from developers point and dot net slackers to no avail.
The solution was to simply repair the BizTalk Server 2009 installation.
A co-worker experienced this same problem, and repairing it did not fix it, you need to have C# installed for the BizTalk projects to be created successfully.