Attention: Maxter is no longer supported.
Following the judgement of the courts, Napster has changed the protocol they use as they move their service to a fee-based system. I don't have any details of the new protocol.
The original protocol had been reverse engineered and I was working from those specs. I do not think it's worth investing any more time in Maxter while the whole Napster issue is so unclear. I'm not interested in writing a free app to give access to a paying service from which I won't profit.
The latest release of the application is Maxter-0.3.10a.tar.gz.