How do you get rid of Icons in the top left of screen?

Recently I downloaded Intigo, I almost immediately deleted it. I just spotlight searched "Intigo VirusBarrier" in my HD and then clicked and dragged everything that had to do with the program to the trash.

Yet the Intigo icon is still present in my toolbar at the top right. I've also noticed that the growl icon is there, and McAfee icon is there as well. I want to get rid of all three of them but do not know how.

Note: I've already tried Command+Click to drag them away, it did not work for these three Icons.

I've also tried searching in Spotlight and hitting select all, still didn't find them.

Did Intigo have an uninstaller? If so, you should have used that. Will see what I can find.

Download the free trial again, and see if the uninstaller is included. If so run that. If no joy download a free utility such as AppTrap, activate it, and try dragging the free trial to the trash.