Can't preview pages & pages aren't being published

Hi,

I just got my site working after accidentally breaking it trying to delete the multiuser network (to fix it I re-added the code that I’d deleted from wp-config), then deleted the .htaccess file when the public-facing site was requesting a log in). It appears that a backup version of the site was restored – from around the time I created the network – but it’s not properly working yet.

All of my pages appear in my dashboard. I can edit pages. I can preview and view my home page. But…

1. Any other pages that I edit can’t be previewed. I get a “page not found” error.

2. When I create new versions of those pages the preview works and the page name appears on the menu in the public view (including a new page I created, so it’s not just old content) but clicking on menu items results in a “page not found” error. Odd that the page names are making it to the server but the server doesn’t see the page.

The actual error:

The page you tried to access does not exist on this server. This page may not exist due to the following reasons:

1. You are the owner of this web site and you have not uploaded (or incorrectly uploaded) your web site. For information on uploading your web site using FTP client software or web design software, click here for FTP Upload Information.
2. The URL that you have entered in your browser is incorrect. Please re-enter the URL and try again.
3. The Link that you clicked on incorrectly points to this page. Please contact the owner of this web site to inform them of this situation.

I’ve looked at the file list in Filezilla and compared it to the file list in my other websites and blogs and don’t see anything out of the ordinary (not that this means there isn’t). Any ideas?

Thanks.