That said, Micheal is probably using Nginx which doesn't use .htaccess files, so it is a bit more complicated (involving the server block configuration)
On to the site design itself:
SERIOUSLY MICHEAL, a redesign is fine, but do it for a reason. For example, base the redesign around responsive design and that would be a reason to change. Clearing up some room and fixing the width so you can put in some bigger/more ads is NOT enough reason.
Fuck the color scheme, I don't care if you change the site colors to orange and yellow, but don't change it without a real reason.
You've been told several times to try out Bootstrap, which does most of the responsive design crap for you... so why not just try it out?