Is there a linux equiv. of windows task manager in knoppix? I'm not to good with the kill command and I'm hoping for a GUI program.

Also is there a free linux client for the Gnutella file sharing network? Perferably one that doesn't have to be installed and can just run from a directory. I've tried running Bearshare over wine but that didn't work only the uninstall worked (alot of good it does me). Any suggestions? Oh and a windows program for the network that works with 3.3's wine is fine to as long as it is only a few megs big (bearshare is only about 2)