It's Silvertop but I think the layout is the same. Could be wrong though.The engine layout is very similar from Blacktop to Silvertop but MMC may have done more changes as part of the engine change as well.
If you look on top of the Bulkhead / Footwell area in the engine bay close to the winder wiper motor you can see these security type domed head screws quite clearly and that will be the give away as to whether your layout is the same.
Let us know when you find your ECU.
