I have been searching the posts and trying to adapt different methods that people have suggested, but it's not working out for me. I'm a total newbie to php.

I want to have a shipping special... $10 flat rate for orders over $40. So basically I want to enable Flat rate shipping for only orders over $40, and disable Zone shipping (which I currently use)... so for orders under $40 still only offer zone shipping.

Can anyone help?