The anchor object makes sure that whatever the size of the project is, the object with the behaviour will be specifically positioned (ex: top left corner). The tiled background plugin repeats the setted texture on all its size.
And finally the scroll to behaviour makes it so that in a bigger layout than the window's size, the object with the behaviour will always appear in the centre of the window (the "view" will adapt/move to the object's position).
I'm not sure what you mean/expect when you say "I have a anchored titled background that doesn't keep up with a object with scrollto behavior"
Well I replaced it with a sprite which is the green header(anchored) in the picture. The black box(scroll to) is a object that moves around bouncing off any solid object. When the black box moves up or down the header can be displaced by as much as 5-10 pixels until the black box stops moving, then it is correct.
You probably rather want your green box to be in a different layer than the blue/black boxes and set the parallax property to this layer to "0,0", like instructed for the HUD in the page 7 of the beginner's guide for C2.