Web Gateway will not Uninstall on Mac

I am trying to uninstall Web Gateway on a mac and can't seem to get it done.  Currently its displaying the Service Not Found error and slowing down web traffic, not to mention sending a lot of outbound traffic.  I put the installer onto the computer and got 2 options, Update or Uninstall.  Update throws an error.  Uinstall justs hangs at uninstalling.  Anyone know how to manual uninstall this?!  Thanks