Installing Zend the easiest way

Go to http://framework.zend.com/download/current/ download the minimal version

extract to a directory that makes sense to you

add to your .htaccess file

RewriteEngine on
RewriteBase /
RewriteRule !\.(js|ico|txt|gif|jpg|png|css)$ index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

php_value include_path ".:REPLACE_WITH_LOCATION_OF_LIBRARY_DIRECTORY"