Recover from failed multisite conversion

If you still have access to your wife’s blog, I would recommend:

  • Running a regular WordPress export of the content
  • Downloading the entire /wp-content directory over FTP

These are the two most important parts of the site – the content and the uploads. From this, you should be able to recreate the site on a clean installation by FTPing the uploads to the server and re-importing her content.

Just to be safe (in case things break again and you need someone to take a hand’s on look) do this in a new database. Don’t wipe anything, just create a new db and a new folder in your hosting account for the domain. This way, if a pro needs to get in and re-do things manually, you’ve still got everything in place.