Foren / Cotonti / Support / Home page?

Something like that so i got it kinda like it want but i want it to be like this

http://primalautoworks.tk/blog/index.php <-- thats where i have cotonti installed but i want to make / and index page like http://primalautoworks.tk/ but i want the main page to be cotonti to than have /blog part of the cotonti install if thats not possible i could work around it.