Frostwire
FrostWire is a peer-to-peer file sharing program for the Gnutella and BitTorrent protocols. FrostWire is written in Java, and is a fork of Limewire, another popular Gnutella client from which it was originally born.
http://www.frostwire.com
FrostWire for Puppy:
http://www.murga-linux.com/puppy/viewtopic.php?t=27343