philipma1957,

Go to Ehash site. Navigate to Downloads tab, you'll see "MM-4.1 Firmware" link once the page loads. Following that you'll be brought to an index page.
Download the mmc.mcs it should be 2~ Mb in size. You can check the MD5 as they have a hash file for verification.

Once its downloaded you just point the mm firmware updater to that file and you should be good to go.

BTW

Thanks for your awesome reviews!!

-J