that means you open a terminal and type:
that should start it if it's properly installed and in your path and all that...
you know, there's gtk-gnutella rpms made specially for mandrake 9.2:
just ONE command and gtk-gnutella 0.93.3 is properly installed:
rpm -ivh gtk-gnutella-0.93.3-0.gtk1.1mdk.i586.rpm
and if you think it sucks, it's easy to remove it:
rpm -ev gtk-gnutella