If you have a modem installed you should be able to set up windows built in fax driver, unless you're using a mac then I don't know but i'm sure you still can.
All you do after it is set upi on your computer is when you normally would print it you should select the Fax driver as your printer instead of default printer. It'll guide you through the rest.
To set it up Go to add\remove windows componets in the add\remove programs section of your control panel, look under communication and see if it's installed if not just install it. You shouldn't need any disks it's part of windows.