Version 3.2 of Swipe defaults to a test mode to assist you in setting everything up.  However once your ready to take real transaction test mode must be turned off but the setting is a few screens deep.  Here are the steps to turning off Test Mode:

1.  From the main transaction screen click on "setup" near the top right corner of the screen.

2.  On the next screen you will again see a button "settings" near the top right corner, click that.

3.  On this final screen near the top of the list you should see a setting for Test Mode.  Switch it to off,

4.  Click back twice to return again to the main transaction screen and you're ready to charge!