You have to make .htaccess file in the location where your cart is

So if you have installed cart in folder/directory store, make a file .htaccess in store and have this as the content

.htaccess
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RewriteRule ^content(.*) index.php
RewriteRule ^component/(.*) index.php

php_flag session.use_trans_sid off
php_flag register_globals off
<Files ".ht*">
deny from all
</Files>

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