The VLC media player is the best to use...Although it wont let you preveiw a file whilst in Limewire, that's why I gave you the instructions to do it outside of Limewire...But However you can download the codecs for windows Media Player and when you have them you can preveiw whilst in Limewire...
I hope I have not confused you to much
This thread will give you the links to the downloads you need...
http://www.gnutellaforums.com/showth...threadid=40665
PS definatley get the VLC player it plays all types of files...