Codeigniter developer needed

We have a eCommerce website built in PHP Codeigniter. We need a blog section which will be attached to the website and will share the same database. So, I don't need any separate blog developed using any third party CMS like Wordpress. I need it to be developed using Codeigniter. The users of the main website can post/ comment in the blog. The script was purchased from itechscripts and has a built-in admin panel. I want the admin panel of the blog to merge with the main website's admin panel.