Pay $50. That's your solution? Limewire gives their software away free to everyone, but I have to pay fifty bucks for it?

Perhaps I wasn't making myself clear, because I know there are lots of helpful people on these boards and it's those people I'm reaching out to. What I'd really like to know is, of the free basic versions of Limewire, which is easiest to install, the linux version or the 'other' version, and how does one go about doing that?