More About Tweakui

I've followed some of the discussion about tweakui being made to work on vista but find it does not for me. Only one item from tweakui really helps me a lot and that is the way you can make focus follow the mouse, and anything the mouse movers over is focused and brought to the fore with a settable delay. Much the same as a similar unix/linux option. I like that behaviour a lot but find it tweakui does not cause that behavior on vista. Can anyone tell me of a way to have focus follow the mouse and anything the mouse moves over is auto focused and raised to fore?