FTP stands for File Transfer Protocol and is a way to transfer files between different locations. WS_FTP is a program that lets you do this. When you run WS_FTP, you will be asked what site you'd like to connect to.

To connect to WJH, enter the following:

Host Name: wjh.harvard.edu
Host Type: Automatic detect
User ID: (your wjh username)
Password: (your wjh password)

Then click the button marked "ok"

(Note: You can ftp to other locations as well. Many ftp sites allow for anonymous ftp. Just type the ftp location into the host name blank. Use "anonymous" for User ID and your email address as the password.)

Once you are connected to WJH, you will see two sections in the WS_FTP window. The left half is your local hard drive. The right half shows the contents of your remote host (in this case, your wjh account).

You can navigate through the directories and files until you find the desired locations by clicking on the names of the directories (or folders for Mac folks) to open them or clicking on '..' to go up one directory.

Uploading
Uploading means sending a file from your local hard drive to your wjh account. Select the desired file in the left half. Then select the desired destination in the right half. Then click the "-->" button between the two halves.

Downloading
Downloading is simply receiving the file from the remote location to your local hard drive. Select the file to be moved in the right half. Then select the desired destination in the left half. Now click the "<--" button between the two halves.

For some help with trouble-shooting, try looking at the WS_FTP FAQ