If you accessed the site recently, you can check your computer's stored history. There is a lot of history, so it helps if you can remember the date you accessed the site.
also, there is a web archive where you can access old websites. Did she post the new website name on the old website? If so, checking the web archive should help. When I get to my computer later, I can give you more info about the archive. I have found some old sites that way.