FourJacks , there are a few versions of MP3 Utilities available in the downloads section, you can just click on the Search Downloads link and type in MP3 Utilities.
Alternatively, here are a few versions.
v4.15
http://www.mympxplayer.org/amv-conve...415-df635.html
v4.13
http://www.mympxplayer.org/amv-conve...413-df604.html
v4.10
http://www.mympxplayer.org/amv-conve...410-df568.html
There are also older versions (v3.xx) in the downloads section.
Install MP3 Utilities and use the Upgrade Tool to check for the installed firmware version.
If it is v9.0.43 and below, you could extract, repair and re-flash the firmware back.
If it is higher, then there are currently no extraction tools to support those versions.
Check out the versions and let us know again.