hello there, just like you i actually just opened a thread about this and still had failed... i have followed every experts advice but i guess my snake is really a picky picky picky eater. anyway, here are some tips

* from live, try to feed a pre-killed first before the f/t.. so its some sort of a transition.

* scent the f/t with mouse urine if available as well as prescent the room.

* make sure the f/t temperature is close to that of a living mouse.

* the younger the snake the 'easier' to switch.

mine finally did strike the FT, but just left it there... didnt swallow the thing. i was disappointed.