@franniewee Hehe yeah... that was my first video... kinda bad all round really.
To assign Rigs colours go to the Armature section in the Properties window (Bottom Right hand side of the screen in most default blender set ups), double tap A with your mouse hovering over the 3D view to select all the bones in the said rig, the go down to bone groups in the armature settings and click the little +. This will create a new bone group for your rig. Now select one of the options from the Color drop down menu just below the little darker grey window that should now have a new Group. Once you've found a colour scheme that you like, or made up your own one, click the assign button. The colour change does not imeadiately show up in the dope sheet or on the rig, but once you select a bone or add a new key frame, or simply hit A again (whilst your mouse is over the 3D view) the change should appear.
To change the rigs name go to the navigator window (above the properties window, top right) and Double click your rig. This should allow you to type in a new name. Make sure you click the pre-exsisting name when you double click, and make sure you hit enter once you've typed in the new name.
Hope that helps