Does anyone know how to set up an FTP server so I can have people outside of my 192.168.1.xxx get to files on my computer?

I am using BulletProof FTP and I see the 192.168.1.102 (My internal IP) and the Remote IP of xx.xxx.x.xxx but when I tried to have Drew sign on, it wasn't working....didn't even see an attempt to log in.

Any ideas?