First save this following settings file to your local drive. http://lawlessweb.googlepages.com/CVSToolbarsAndMenus.vssettings
Then, open Studio and select Tools Import and Export Settings
Next, save your current settings and import the attached settings.
You should now see a new set of buttons in the top right corner of Studio as follows:
From left to right, the buttons have the following functionality.
Commit - Commits changes back to CVS.
Update - Tells CVS you are updating the file.
Diff - Shows difference in local and last version.
Modifications - Shows modification history
Revert - Replaces local copy with last version.
Tortoise CVS offers a number of other source management commands. You can add additional commands to your toolbar by modifying the settings file as I have done in order to customize it to your liking.
The following link is a great reference source for CVS command line arguments:
http://ximbiot.com/cvs/manual/cvs-1.11.22/cvs_16.html#SEC123
