Deborah: first, your server needs to be running Apache (i.e. it needs to be a Linux server rather than a Microsoft box) and then you'll need FTP access to your server. If both apply, just look for the .htaccess file in the same folder as your main index file. For example, if you have the domain dekoff.com
the .htaccess file is located at dekoff.com/.htaccess
. If it isn't there, you can create the file. Does that help?