Lacking of good GUI tool, it is often a headache for newbies to setup the FTP service to transfer files among windows/linux/mac machines. Here we introduce a new powerful GUI server/client tool for you to easily solve this problem.
You can use it on Linux, Windows, or Mac OS X, the same approach. System Requirement: Install Sun Java 1.4+
It will use the FTP tool called CrossFTP Server and CrossFTP Client. What you need to do is setup the FTP Server first for file sharing. After that, use the FTP client to download/upload files from/to the server.