In the main window of the Vault Client, you can load the Blame page for the latest version of a file. But, I can't find a way to get to the blame window for an old version. For now, it's OK to go into the web interface and find the file that way, but it would be nice to be able to right-click on an old version and click "Show Blame".
Not a huge deal, but it would be nice.
Josh