i don't know about that program but you can download streambox ripper .
Now open stream box ripper and click on load, select the mp3 that you got from winmx.
Click on convert. In the screen that pops up, select the following.
*decode from start
*change to sampling rate 22050Hz//channels mono
*select msaudio - bitrate 16kBps
*uncheck equalizer, check the following two
*look at the top and select the directory you want to save the song in
*click on ok
Sign up for a webhost [links on the resource page].
Upload your song [before you upload it, change the name of it to a lowercase abbreviation with no spaces]
The url will be similar to
http://www.webhost.com/u-on-webhost/name-of-song.wma