Consider a project which has been checked out from SVN server repository.
Whenever we do some changes/modification in the project we used to commit the changes to SVN server. For each and every commit a revision number will be added or assigned automatically to the modified files.
Note: It is a good practice and recommended to do an update to the HEAD revision before doing a commit. (Team --> Update to HEAD)
At any point of time if we would like to go back to any particular revision here are the steps to perform:
1. In iTest, right click on the file from the project and select Team --> Update to Version.
2. Uncheck the Update to HEAD revision, click on Select… and we should choose the specific revision from the revision list, and click on OK.