Setting up Apache

I'm setting up Apache server for elgg (an o开发者_开发技巧pen source social networking framework) . I've installed apache2 on ubuntu and created a new file 'elgg' on 'sites-available' folder in /etc/apache2/ , copying the contents of default file already in that folder .I also changed the document root and directory setting inside the file and made no other changes .I enabled the site using a2ensite . But when i try to access the site through the browser it says - 403 forbidden , You cannot access this diectory . Is there something i did wrong ? I gave all users read ,write and exec permission in document root folder , still it's shown as forbidden

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• Check if one of the files specified as 'DirectoryIndex' is available and accessible, or if 'Indexes' is as Option.
• Check for .htaccess files with possible 'Deny' conditions, or a Deny condition in your 'elgg' file in sites-available.

(Edit: removed 1, was already done)