Newbie help

Ok Im a newbie at this... I downloaded Smart FTP on both computers that I want to transfer files from. On my new computer, I typed in the IP address of my old computer and it didn't connect to it. I used this program several years ago and I vaguely recall I had to set it up on my old computer to allow connections to connect to it, plus what folders were available for viewing etc. And I watched all of the tutorials but none of them explained how to do that, so I'm back to square one... does anyone have a link to something that explains it all just for basic transfer of files?

SmartFTP is only the client side. The PC you connect to (using SmartFTP) needs to run an FTP server.