When you install your Track Application it asks you:
Please configure your Trac project
You have to chose Subversion to use it. After that it will ask you for creating a Project with Subversion and you have to indicate the details about the project and the repository.
Is there a typo? I don't understand what you mean. Can you upload a screenshot?
Bitnami Trac Documentation:
Bitnami Subversion Documentation: