I found this in a few different places around the 'net - hopefully it's helpful:

Move Your Taskbar to a New Spot

Is your taskbar taking up too much room? You can move it to any convenient location - simply drag it to the sides, top or bottom of your screen! You might need to unlock the taskbar first.

• Right-click any open area on the Taskbar, then click Lock the Taskbar to clear the check mark.