ohh, I get it--You're the person who goes around all of the File Sharing Forums asking that question just to take the ****.---well, it's getting a bit old.
Just in case you are simply tad naive,and lazy or the site is too complex for you to negotiate---
Limewire is legal in and of itself.
BUT--- In most countries it is an offence to download any kind of copyrighted material without payment .
The whole concept of File shraring is essentially dishonest, notwithstanding the loud noises one hears about its intended legal uses.
It's highly unlikely you will get arrested--but,if you have qualms or are afraid, don't bloody use File sharing programmes! What is so hard to understand?