301 or 302 Redirect - Please Help

Hi

I am working o a new design for our Squarespace site - www.cn8.co.uk

I have added a landing page, the client has just said that if someone goes to www.cn8.co.uk/about it says page not found as I had to disable these pages until the ew site has been built.

Should I set up 302 redirects that takes them to the labding page, and can I revere these when I am ready to go live with the new site?

Thanks

Thanks.