redirect from https to http

Hello,

I'm having issues figuring out a redirect from https to http.

I have a server with a single IP address. I have several websites on this server. One of the sites is accessed through port 443 whereas the others are not and do not require SSL. The problem is if I add HTTPS to one of the sites that do NOT require SSL it will bring me to the site accessed on port 443. Is there a way to prevent this from happening?

Any suggestions and advice would be great.

Thanks.