I recently updated our site taking it from a multi-page site to a single page site.

The problem now is that when the site is searched in say Google, it displays the site as well as the indexed pages. So if a user clicks say our "About" page, it takes them to our now outdated material.

I am hoping to get some guidance on how to properly handle this.

I figure the first step is to now setup a robots.txt on our new index page to tell the engines not to crawl beyond index.php.

But in the meantime, how do I handle the fact that when searching our site on Google we may still have users who try to click on sub-page links?

Should I simply setup redirects while waiting for the engines to update?

And if so, do I need to setup redirects on each page using PHP or is this something I would take care of on our sites control panel?

I am not very familiar with redirects...

Any help is appreciated!