Updating firmware on M250

Googling, I found this:

http://drivers.softpedia.com/progDownload/Sansa-m200-Series-MP3-Players-Firmware-Download-74681.html

But if that doesn’t work, you’re sure the Sansa m200 Firmware Updater ( sdmx3-iv001.exe ) doesn’t work for you? Have you tried it more than once? And followed the directions exactly (like installing it before you plug in your player and putting the player on HOLD)?