Hello - I'm trying to launch a site that is responsive with RSD 2.0 Beta - curious how difficult it is to create the HTML with RSD to then copy into my Cpanel for a custom 404 page (I really want this error page responsive as well).

Or is there a better way to accomplish this?

Are there any other folders or files created that will need to be uploaded for the page to function as intended?

Thank you

Yes you can create a custom 404 page. The one thing you need to do is to change all the links and such to absolute depending on your servers .htaccess setup.