Put the new .ELF on a USB thumb drive.
You can use ULe to browse to your MC, hit R1 and delete the old .ELF,
and then browse to your USB, hit R1 then copy the new .ELF.
Then browse back to your MC and hit R1, and paste the .ELF.
And to add the new .ELF to the FMCB browser, I have a video on my youtube page in my signature.
And sorry to here to paid for it.