Avoiding index.php from codeigniter url

[eluser]SaJu[/eluser]
Hi,

I have done a site using codeigniter framework, the site is working fine from offline(wamp server). When I checked it from online server, it is not working correctly.
I believe I have done all the things like .htaccess file creation, making $config['index_page'] ="", etc.
I have checked my server configuration for allow_url_fopen status, by default it was pointed "off". But I have uploaded a php.ini file to the server(inside public_html folder) with content 'allow_url_fopen = On' to change the status. Now the status of 'allow_url_fopen' is showing "on", but still the url is needed index.php to get the things, else it will always pointed to home page (default controller). can anybody will help me to solve this issue..

you can see the site from url http://www.tenantsearcher.com/
No links are working correctly without index.php in the url.

Thanks in advance ,
Saju