Also BWD’s BluePrintONE will very likely do what you want and is about as simple as a positioning stack can be. As with all BWD stuff there is excellent help and demo projects.
Alternatively S4S has a simple free positioning stack that may do what you want.
However, all form of web positioning demand a degree of basic positioning knowledge and a brief read of the basics would be time well spent. You will also be surprised how a only few lines of code is needed to do what you want.