So, are you sure that you have a "faxmodem," and not just a regular
modem? If you actually have a true "faxmodem," its manufacturer may
have fax software available at little or no cost. If all you have is a
regular modem, you'll need to purchase and install a faxmodem; so just
make sure you buy one that comes with software compatible with WinXP Home.
Also, you need to make sure that you use a standard dial-up "analog"
modem and not a Cable or DSL modem. These last two categories, the
unit will only send a "digital" signal over Cable or telephone wire
and is only for Internet access.