need help converting mp3 to WAV
 

I've recently downloaded winamp 3 and can download and play mp3 files, however, for the life of me, I cannot work out how to convert them from mp3 to wav so I can then burn to CD and play on my stereo. I have read the tech support stuff, which makes reference to "Select Nullsoft diskwriter as your output plugin (prefs>plugins>output)" I've searched every menu option within the preference section but there is no plugin option to be found.

If anyone has an "idiots guide" to converting mp3 to wav using winamp3 I'd sure appreciate it