When you have finished your changes you need to submit the changeset to apply the changes to the server files. Right-click the workspace folder and select 'PureCM | Submit'. This will launch the Changeset Dialog as described in the section called “Changeset Dialog”.
Within the Changeset Dialog you can uncheck any files you do not want to submit and check all your changes with the differences window. If you are happy with the changes press the Submit button.