looked up your issue, as i was wondering the same thing... here is what i found so far
Call your ISP support and get these, they will know what you mean
1. The ftp server for your web page
2. Your login name
3. Your login password.
Once you have those just open your web browser and type in at the address line:
ftp://yourFTPserverURL
When you enter that, a login window will pop up. Enter your login info and you'll be able to drag and drop files into that window.
NOW...if you want to make just a clickable item on your desktop that will always be there....
Right click on your desktop.....select NEW / Shortcut
Then in the command line type
ftp://yourLoginName:yourPassword@yourFTPserverURL
Give it any name you want. Now...whenever you open that shortcut (assuming you are logged on to the internet) it will open up a window that you can drag and drop files into.
If your friend sets up the SAME shortcut on his computer...he can do the same thing. When either of you put files there, the other will instantly see them and can drag them out onto their own computer