I attached mine with the dots on each side of the Quicklaunch bar for reference.
There should be no checkmark in the space in front of "Lock the taskbar" in the context menu.
The screenshot shows how it appears, and in red, how it should not appear if it's unlocked.
Regardless of the appearance, can you grab and move the toolbars around as described in the tutorial?
Edit: Sim posts! ^-^