Alright...maybe this girl is not so powerful after all.
I restored my database and files from my backup and the site was working fine again.
Then, I copied over all of the files from the 2.8.2 install (except the wp-content folder, and wpconfig.php) as per ipstenu's suggestion.
Now when I try to log in to the admin folder or view a blog on my site it brings me to wp-admin/install.php and is asking for my username, etc.
I'm afraid that doing this will wipe out all of my database tables and files.
Any guidance would be very much appreciated!