IIS7.5 – replacing one site with another

I am currently using IIS7.5 along with WordPress to design a new Intranet site. I’ve set this up as a new site, created a folder for it within inetpub and bound a hostname for it. I’ve also setup a Host (A) record for it in DNS and have been able to browse to it with no problems.

Whilst designing this new site our current Intranet files have been stored in the Default Website (wwwroot) folder and have an Alias set-up in DNS pointing to them. We can also browse to this site with no problems at all.

I am now wanting to remove the old site and replace it with the new. What would be the best way to do this?

I’ve had some problems with the CSS applying properly when trying before.