Hey Sawtooth User,
As per my understanding, you are seeking a way to test particular version whereas Sawtooth returns a random version while you test the survey.
If my understanding is correct, then you can access survey using Admin module test mode. You need to enter internal respondent number same as the version you wish to test.
In order to verify the version number, use the function given by Rajesh in earlier response.
I hope this helps.