According to my understanding, there are two ways:
Firstly, you can get the Talend Integration Suite which comes with SVN repository integration. It by default synchronizes the activities of the developers sharing the same repository.
If you don’t want to upgrade TOS, then you can try moving your TOS project directory under the SVN control. By doing this, you can perform various SVN operations like commit, update etc., manually. Make sure you put version on your entire workspace, to minimize ambiguity.