168499 Wordpress MOD Rewrite

We have a Website Developed in Wordpress that needs Mod REWRITE Service.. Since Right Now the URL Pattern is [login to view URL] We want to change it to the most effective url patterns Like [login to view URL]%postname%/ Or [login to view URL]%postname%/%post_id%/ Our Developers has tried to make this with using .htaccess but website use to redirect to the homepage Wordpress installation is done at the root of the Domain Only Experienced Wordpress Programmer May Apply Since this is a Company site and Programmer will be responsible to manage the Site Content and its Security While MOD REWRITE process. Programmer Can Install the Plugins helpful to Make the Site url seo friendly.