What was the name of that version control tool before CVS, RVCS? Back in 2007 I had heard one very big name hardware company using that for version control and planning to move to CVS as they thought the former was beginning to show its age.
Or you could talk to Joe down the hall. He has the 'gold' version of the source code on his desktop. Don't forget to send him your changes when you are done and he will integrate it to the current 'gold' version.
The company I'm working at actually moved to ClearCase a couple of years back. It's the most painful development tool that I have ever used and I pity any future victims of IBM's marketing skill who choose to adopt it.