there should be a little screw holding the lil bit of plastic in place, un-do both in passenger and drivers footwell, there'll be a lot or wiring i guess, you'll see the ecu in its cradle,undo the 2 screws on either side,and coax it out carefully, loosen the screw holding the big blue ecu plug to the ecu, fit new ecu and re do in reverse order, 5 min job tops
ill get your ecu off to you as soon as iv picked up my standard one and swapped it over