I downloaded the zip file and unstuffed it on my Mac (I'm one of those Mac guys- no PC...) I copied the .exe file to the FD to use in the SD1.
That's the same way I handled the 4.0A upgrade.
I thought the .exe file was the only one needed, if you had 4.0A loaded in the SD1.
What other files did you need, and where do you get them?