Carrie,
If you changed everything on your site, it will take Facebook a while to update their cached data for your pages. That could take anywhere from a day to a week or so.
What I would recommend is using the
Facebook URL Debug
tool on any pages that aren't using the right information to see what Facebook would see now. That will let you diagnose if it's a real issue, or simply something you need to wait out a little bit. That tool also (usually) updates their cache immediately for the page you use it on, which could help.
I hope that gets you going, but if you have any other questions or feedback, just let us know.
Thanks,
Alex