Here are some instructions on how to use the .htaccess method of protecting files and directories. It can be pretty simple to do.
The system requires two files -- the .htaccess file and .htpasswd file.
AuthName "restricted area"
The above code protects a directory called "protect-me-dir" inside of the html directory. Be sure to use the correct folder path for your account type.
The .htpasswd file contains the usernames and passwords of allowed users. This example shows 3 different users. One per line. The passwords are MD5 encripted for security purposes.
To generate encrypted passwords for your .htpasswd file, you can use this password generator. http://www.htpasswdgenerator.net/