[UPDATE April 8]  The download page works now, and the link is now up to date.

Brian Harry posted an announcement today that there is a new release of the MSSCCI provider for non-VS2005 environments.  This one actually has signed binaries. ;-)

Here's the summary from the download page.

Overview

The Visual Studio Team Foundation Server MSSCCI Provider enables integrated use of Team Foundation Version Control with products that don't support Team Explorer integration.

Instructions

Download and run Visual Studio Team Foundation Server MSSCCI Provider.msi on a computer with one of the following products:
  • Visual Studio .NET 2003
  • Visual C++ 6 SP6
  • Visual Visual Basic 6 SP6
  • Visual FoxPro 9 SP1
  • Microsoft Access 2003 SP2
  • SQL Server Management Studio