To remove apps from your Android phone, openthe Android Menu, go to Settings and select Applications, then click Manage and, when you find the offending app, click Uninstall.
The same gestures apply -- swiping in from the right to expose the Charms Bar, swiping from the left to toggle through open programs and swiping the bottom or top of the display to expose settings specific to a certain application.
Though most Facebook users have been made aware of the fact that the new privacy settings default to be quite open, many have not realized that this applies to their photo albums too.