In your css file you can use font-family to list alternative fonts to be displayed,
if the one you want is not on their computer.
BODY {
font-family: "Tempus Sans ITC ", "Times New Roman", Times, serif;
}
Beth if you haven't already you may want to use cpanel > backup
download a home backup
which you can always upload yourself.
I like to do this before any major changes just in case
The Home backup contains all but your databases and e-mail filters and forwards,
which you can also downlod.
in looking at the instructions
there are some folders that are not normally uploaded
You need to uncompress the files and edit the Config.pm file
then upload
Most people have trouble in editing the Config.pm file.
You have to go inside far enough to find the right places to edit as the first part of the file has a lot of documentation.
The newest version has improved that and numbers the parts to edit.
If you follow the installation as per their site,
you will be fine.
If you do have trouble, let us know and we will do our best to help.