INFO: SSAFE: Renames and Deletions Not Supported for Source Code Control Through the Visual Studio .NET IDE
The MSSCCI interface that Visual Studio .NET uses to integrate with Microsoft Visual SourceSafe does not support renames or deletes. Renames or deletions that are made within Visual SourceSafe do not propagate to the Visual Studio .NET integrated development environment (IDE) until a Get Latest Version is performed.
This is also true if an item is renamed or deleted within the Visual Studio .NET IDE. The deletion or rename does not propagate to the Visual SourceSafe database. In the case of a rename, a new file with a separate history is added to Visual SourceSafe.
[Q305516]
It's a feature, not a bug!