really basic question...

ok, i've never used this before, and before i download it, i just want to know if you have to install it on both computers, or if you can just type an address into the bar of internet explorer and be able to access your files from another computer???

In general, you need two programs, but not two times SmartFTP. SmartFTP is only the client side. You can only connect to machines running an FTP server.