How would one go about uninstalling this program?  I can't find it in my add/delete new programs in my computer.  Also, it goes away when I click on an icon.  How would I get it back up???

You can uninstall Circle Dock by simply deleting it's folder. It doesn't write to the registry or anything. To toggle the visibility of the dock, click your middle mouse button, move your mouse to the edge of the screen, or press the visibility hotkey (F1 by default). This can be changed in the settings panel if you right-click the tray icon for Circle Dock.