The one that worked for me is 1.46...
Make sure to look at your driver file AdfuUpdate.inf and see if your VID and PID reflect your unit if not just change it to the correct one of your unit and save it (use Notepad)
usually the one you need to change is PID and look as: ff51 or ff66 etc...and that is the one you change.
VID is usually 10d6
Do not change any thing but this...you need to do that on the top and at the end.
Hope that will help.
MPxIRAQ try this site:
http://www.s1mp3.org/en/downloads_tools.php#updater