To view the results of your survey, select Manage Surveys - > Surveys and click Stats on your survey's row. This will display all of your questions and the results. You can see more detailed information by clicking on the total number of results.
The details available include the respondent's IP address as well as the Name, Username and E-Mail, if the respondent is logged in.
You can also decide to unpublish certain responses. To unpublish a response, click the check box next to the response and click the unpublish button at the top of the page.