Which languages are you after? 'Most times' chinese & japanese show up fine on my LW. I have had issues with files originating from other clients, particularly the multi-network ones. Here's some references
http://www.gnutellaforums.com/showth...hlight=chinese http://www.gnutellaforums.com/showth...light=japanese http://www.gnutellaforums.com/showth...light=japanese
Verdyp would probably be the best person to ask.