FTP stands for File Transfer Protocol and is what you usually do
to get your web files onto the server where they can be accessed
over the internet.
If you are on campus on the network you will be able to use FTP
Explorer. Here is a tutorial.
If you want to use an FTP client on your own computer, you can
download one of several free FTP clients from the internet. Here
is a tutorial and source for a fairly
easy application called FTP Surfer.
If you are a Mac user and want a good free client, you can use
CyberDuck. Tutorial and link coming soon.