I had removed anything reachable of the old limewire installation, but can't find the file still initiating the message about „a newer client” already installed. Old McFreak might share an enlightenment about that with me.
However, i needed to get clear, whether a happy pirate is pulling my legs. A clean sys install on a remote volume, booting there, and starting the client gave the answer: It's working like a charm!
Fine piece of software! Thanks for that one folks!
I'll try to return something through the forums and write along the gnutella project at another place in cyberspace ...