Using a revision control system has many advantages:
Before the Subversion functionality can be used you must set up the Subversion repository connection.
To put a project under version control means that you register it with a Subversion repository and submit it’s data to the repository server. This is equivalent of the file system “Save As” operation.
Once a project has been registered with a Subversion repository, information about the Subversion repository is stored in the project. After the initial commit (“Save As”), every subsequent commit corresponds to the file system “Save” operation.
That means that the second time you commit a project you will not be prompted for a location in the repository.
Every time you commit to the repository it is highly recommended that you write a comment (when prompted) that describes the changes you have made to the project. This will help others that work on the same project see what has been changed and will also help you if you need to backtrack to an earlier version.
Underneath the Repository file system tree there is a list named History. When you select a project file in the repository, every earlier version of the project is listed here. Select the version that you wish to checkout from this list and click Ok.