Need to create 403.4 page

Hi all - 

Here's what I need to do:

I have a site... called site.domain.com. This site needs to only work on https://site.domain.com. When I go to http://site.domain.com I want to get an error called 403.4 - requiring the user to manually type in https:// to access the page.

I have the bindings for https (443) on the site, but did not configure the bindings for http (80)

I have the "require ssl" checkbox enabled as well for this site.

whenever I go to http://site.domain.com I get a 404 error as stated, I need to make that a 403.4.

What am I missing?

Thanks.

Edit: IIS7 :)